Battery Logic UK - FAQ - NiMH Rechargeable Batteries and Chargers

Q : How long does it take to deliver ?	top
All orders are sent via First Class Royal Mail delivery. All orders received before 5pm, Mon - Fri, are dispatched on the same day. If you would like us to deliver to another location, your work address for example, please call our Sales and Customer Support team on 0800 066 4668 (mon-fri 10am-6pm)
Q : I've been told that rechargeable batteries are rubbish!!	top
If you've used rechargeable batteries in the past and they did not perform or you've been told that rechargeable batteries are simply no good then the chances are that older alkaline rechargeable batteries were being used, which were rubbish.. The latest NiMH rechargeable batteries we stock are SUPERB. We only sell Uniross rechargeable batteries and they are simply state of the art. Today's NiMH rechargeable batteries will easily outperform everyday 'throwaway' alkaline batteries in most modern digital equipment and perform fantastically in almost every application. Our most popular AA/AAA batteries are HYBRIO's. All our batteries and battery chargers are designed for use in today's power hungry devices and all items are covered by the Battery Logic Satisfaction Guarantee. We are so confident in the quality of our products that if for any reason you are disappointed with the performance of your purchase we will give you your money back! We have yet to have a disappointed customer.
Q : If rechargeable batteries are so good why is it that I never see them for sale in supermarkets along with the Duracells for example ?
Simply because a rechargeable battery can be recharged a thousand times. Supermarkets can sell you a thousand packets of 'throwaway' batteries for every packet of rechargeable batteries!! They make an absolute fortune by only selling you throwaway batteries and they know that you'll probably be back for more next week. That's why they are always so conveniently stacked up by the checkout. Don't be fooled by the big 'value' packs, two for the price of one and all that nonsense.. It's probably one of the biggest marketing cons of all time! Join the revolution. Buy once - recharge a thousand times. Welcome to BatteryLogic
Q : I'm New to rechargeable batteries, tell me a little bit more ..	top
There is nothing technical or 'specialist' about rechargeable batteries. They are intended for everyday use and come in everyday sizes (AA, AAA, C ,D, and PP3) They are exactly the same size as the throwaway batteries you would buy in any High Street store or supermarket. The beauty of Uniross rechargeable batteries is that they can be recharged a thousand times and generally they greatly outperform standard everyday batteries such as Duracell and Energizers in devices that 'eat batteries'. The fact that Uniross rechargeable batteries can be used again and again represents a massive saving over their useful life. Battery Logic : Buy once, recharge a thousand times. Rechargeable NiMH batteries are also very popular simply due to the fact that they are extremely environmentally friendly. Kind to your pocket - Kind to the environment. A good starting point would be to look at the Uniross EASY battery charger, which will charge AA, AAA, and PP3 battery sizes, will cost you less than £15 and comes supplied with four rechargeable AA batteries to get you started. All you need to do is put the rechargeable batteries into your battery charger and switch it on. It really is that simple. Once charged you use your rechargeable batteries as you would any other standard battery, the only difference is that after a few charges you are no longer handing over your cash for 'throwaway' batteries. All our chargers and batteries pay for themselves pretty quickly. Welcome to Battery Logic!
Q : When should I choose HYBRIO or normal NiMH rechargeable batteries?	top
HYBRIO batteries are the battery of choice for almost every application. Don't for one minute think that you are getting a lesser battery simply because the capacity is rated at 2100mAH whilst our regular NiMH AA batteries are rated at 2300,2500 or even 2700mAh. If you regularly use and charge your batteries on an almost daily basis then 2500 or 2700mAh AA's would be the better choice. If on the other hand you use your batteries irregularly or infrequently then the HYBRIO is by far the best choice. The reason for this is simple and comes down to the 'self' or 'natural' discharge found in regular NiMH batteries. What self discharge means is that once charged, a fully charged NiMH battery is losing a small part of it's charge on a daily basis even when not being used. In fact, the higher the rated capacity of the battery, the faster the rate of self discharge becomes! A HYBRIO battery on the other hand has a VERY LOW self discharge and which means it can maintain it's stored power for months and months on end. This very low self discharge characteristic is what makes HYBRIO batteries so very popular with our average battery user. If you charged a 2700mAh AA and a 2100mAh HYBRIO battery and put them both to use immediately in a power hungry device then the 2700mAh battery would give you approximately 25% longer use due to it's higher initial capacity. If however you left the batteries in a digital camera for example and came back to them three or four weeks later then the HYBRIO batteries would now give you longer use because they will have held on to most of their power while the 2700mAh battery would have lost a considerable amount of charge due to the self discharge mentioned earlier. In a nutshell the numbers game (mAh capacity) goes out the window unless you really hammer your batteries and are constantly charging them when used in extremely power hungry devices. For the average user, the HYBRIO batteries offer a much more reliable solution and this is why we now sell more AA HYBRIO batteries than all other AA batteries put together! If you have any questions about any of our products please call us FREE on 0800 066 4668 mon-fri 10am-6pm. We know our product range inside out, we simply LOVE talking batteries and are always more than happy to answer any questions you may have!
Q : My camera came with lower capacity batteries than the ones I can see on the BatteryLogic website. Can I use these high capacity batteries in my device?	top
Yes, most definitely. As rechargeable battery technology moves forward battery capacities increase. A year or two ago the best capacity AA batteries available were about 1700 or 1800mAh. Today you can get 2500mAh AA batteries for a similar price. The higher the capacity of the battery the longer it will last between charges. A good analogy here is the petrol tank in a car. If you had a bigger petrol tank in your car, the car would perform in exactly the same way as it did with the smaller petrol tank but you would drive for longer before you had to fill the tank up again. This is the same for a higher capacity battery. Your camera for example would perform in exactly the same way as it does with lower capacity batteries but you would simply be able to take many more pictures before the batteries need to be recharged due to the increased capacity of the batteries.
Q : Can you deliver to an address other than my card statement address ?
Yes. Please call our Customer Sales and Support hotline on 0800 066 4668 (mon - fri 10am - 6pm)
Q : Is it true that you will not charge me delivery on my battery orders ?	top
Free delivery on all rechargeable battery orders. You can order as many batteries as you like and the price you pay is the price you see. All orders received before 5pm Mon-Fri are dispatched on the same day. The only delivery charge that we will ever make is when you order a battery charger and even then we'll only charge you £2.95 for UK delivery! (many battery chargers even have FREE delivery!)
Q : Who are Uniross, I've never heard of them?	top
Uniross are the UK's most popular brand of rechargeable battery and account for almost 70% of all rechargeable batteries bought in the UK. Remember the name and you will see for yourself. Uniross are the Rechargeable Specialists and have a pedigree to prove it. Uniross are widely regarded as the “The Rechargeable Specialists” and have been at the forefront of rechargeable battery technology for many years due to consistently high quality and continual product development. Their state of the art NiMH technology saw the release of yet another world first with the launch of the awesome 2300 mAh NiMH rechargeable battery which set the benchmark for ultra high capacity AA batteries. If you are looking for a battery charger then you are also in good hands as Uniross are the worlds largest manufacturer of battery chargers.
Q : Why don't you sell any other makes of battery, I can only see Uniross ?	top
Simple. Uniross lead, others follow. Uniross are the Rechargeable Specialists and have the pedigree to prove it.
Q : Can I charge ultra high capacity 2500mAh AA batteries in my existing charger.	top
You can charge the superb Uniross 2500 AA NiMH batteries in any NiMH charger. The time taken to fully charge the batteries will be directly proportional to the charge rate of your battery charger. Try this ** Let's say it takes you five minutes to fully fill your bath. Now let's say that you've just treated yourself to a new bath with twice the capacity. OK. The point here is that it will now take you twice as long to fully fill the new bath. If you want to be able to charge 2500mAh batteries in less time than your existing charger will be able to do it in, and you also don't want to have to keep an eye on the whole process, then maybe take a look at the Uniross Fast Charger
Q : What is the difference between the range of chargers ?	top
The difference between the range of chargers is speed, versatility and price. Generally the faster the charger, the more it will cost. A good fast charger is almost essential if you will be regularly charging modern high capacity rechargeable batteries. All our Uniross chargers will charge both NiMH and NiCd rechargeable batteries and all of them will charge both AA and AAA batteries. If you want to be able to charge every household battery size you will need a Universal charger. Our Universal chargers will charge AA, AAA, C, D and PP3 size batteries. Also take a closer look at the revolutionary battery converters If you just want a convenient everyday AA, AAA, PP3 charger for the home or office then take a look at the very popular Uniross EASY battery charger. If you only need to charge AA and AAA batteries, but you want them charged quickly, are looking for a highly portable charger, or you just want a well built, simple to use AA/AAA charger that you don't have to keep an eye on while charging then take a look at our best selling intelligent charger - the Technoline BL700 battery charger . If you have any questions please call BatteryLogic Customer Support on 0800 066 4668 (mon-fri 10am-6pm) or email questions@BatteryLogic.co.uk.
Q : What should I choose between NiCd and NiMH batteries ?	top
If you are new to rechargeable batteries then skip the NiCd batteries you may find on the BatteryLogic website and go straight to our range of the latest NiMH Rechargeable batteries which will offer you the best performance in almost every application.
Q : How much money can I expect to save ?	top
Quite a bit actually. Let's say you pay £3 for a packet of four Duracell throwaways. Now buy a thousand of them and that's cost you a whacking great £3000! It doesn't really matter what you pay for them, it will still be a substantial amount of money. If you were to buy, for example, the Uniross EASY battery charger for £14.99 including four NiMH rechargeable batteries, which can be recharged a thousand times, recharge the batteries five times , then as if by magic - you've got your money back!. (5 x £3= £15 which is what you would have spent on throwaway batteries). The next 995 charges are essentially FREE batteries. You would also save 3996 batteries from the landfill site over the lifetime of your Uniross rechargeable batteries! Feel free to forget the sums. It's simple. Rechargeable x 1000 = Battery Logic : Kind to your pocket - kind to the environment.
Q : How Green are rechargeable batteries ?	top
Rechargeable batteries have the greenest environmental credentials. Using rechargeable batteries reduces household waste massively. Globally, 15 billion ordinary batteries are thrown away every year, all of which end up in landfill sites. Rechargeable batteries can be reused again and again which massively reduces the impact disposable batteries have on the environment. The most ecological rechargeable batteries available are NiMH rechargeable batteries (Nickel Metal Hydride).
Q : What's the difference between a Standard, Fast and Ultra Fast charger ?	top
All chargers will have a rated charge output and this is how chargers are classified between a standard, fast or ultra fast charger. The time taken to fully charge the batteries will be directly proportional to the charge rate of your battery charger. The following outputs may be useful as a rough guide Standard battery charger 100mA Fast Charger 250/300mA Ultra Fast charger 1000mA Our most popular chargers will charge a battery about 10 times faster than a standard battery charger would be able to do the same job. Our Ultra Fast chargers are also 'intelligent' chargers. What this means is that you do not have to keep an eye on charge times or worry about over-charging when 'topping up' your batteries as the charge controller will stop charging the instant your batteries are fully charged.
Q : How long will a rechargeable battery last ?	top
The chances are that once you get into rechargeable batteries you will never use a throwaway again. Let's say you use a portable CD player and you replace the batteries once a week. To simplify the sums we'll say that there are 50 weeks in a year. You can recharge your Uniross rechargeable batteries 1000 times so : 1000 recharges / 50 weeks = 20 years. If you look after your batteries they will last however long it takes you to recharge them a thousand times. Buy now- save later.
Q : Do I need to use a Uniross charger to charge Uniross batteries ?	top
No. You can charge your Uniross batteries in any make of charger that has been designed to charge NiMH or NiCd rechargeable batteries.
Q : Can I charge my existing rechargeable batteries in a Uniross charger ?	top
Yes. You can charge any make of battery in a Uniross battery charger as long as the batteries are either NiMH or NiCd rechargeable batteries.
Q : How much performance improvement can I expect using Uniross NiMH batteries instead of everyday throwaway batteries in high drain devices like a digital camera?	top
NiMh rechargeable batteries will *easily outperform* 'throwaway' alkaline batteries in almost every application. Uniross NiMH batteries are simply state of the art. Have you ever noticed when using high powered alkaline 'throwaway' batteries in a digital camera or similar device, that things can soon start to slow down and you need to replace the batteries a lot sooner than you'd like to? DO NOT throw these batteries away (well not just yet!) as you will probably find that the batteries will work perfectly satisfactorily in less demanding equipment such as radios or TV controls. Try it!. The point here is that the battery still has plenty of power left in it, it's just not able to deliver it quickly enough. That's why everything stutters and slows down and drives you mad. It does not matter which make of alkaline battery you try to use as there is no getting away from the fact that alkaline batteries are quite simply not capable of operating today's power hungry digital devices due to the outdated chemistry of alkaline batteries. Alkaline batteries can store the power, it's just that after a relatively short period of use, they simply can't satisfy the needs of modern digital equipment where full power is required 'in a flash'. NiMH batteries are at the cutting edge of today's rechargeable battery technology and are specifically designed for modern power intensive applications. Battery Logic : It's real, it's here and it's yours.
Q : What is "mAh" all about? Please tell me a little bit about capacity.	top
Capacity counts. Rechargeable batteries are rated in "mAh" which stands for "milli-ampere hours". What this means is that a 1000mAh battery would be capable of delivering 1000mA of current consistently for one hour whereas a 2000mAh battery would be capable of delivering the same 1000mA of current for two hours. Do not allow this figure to confuse things. This number simply tells you what the capacity of the battery is. For example, a battery with a capacity of 2000mAh would run the same device for twice as long between charges as a battery with a capacity of 1000mAh as it has twice the capacity. Basically, the higher the number the better it is in high drain applications as you will benefit from longer run times. Our top of the range Uniross Ni-MH AA batteries are rated at 2500mAh. This means their run times will be longer than NiMH batteries with lower capacities.
Q : Can I use 1.2 V rechargeable batteries in devices that usually take 1.5 V throw away batteries?	top
Yes, most definitely. Using 1.2 V rechargeable batteries will have no effect on the use of the equipment. In fact an alkaline battery only benefits from 1.5 V voltage at the beginning of its discharge. Then, it drops constantly to well below 1.2 V. Finally, it drops to around 0.6 V. Most equipment will work happily on anything between 0.9 V and 1.5 V. Unlike alkaline batteries where the voltage drops quickly, rechargeable batteries offer a more constant voltage around 1.25 V throughout the entire period of use. That is why the latest rechargeable batteries will actually outperform alkaline batteries in equipment calling for a constant and high level of energy input, such as digital cameras, flashes, camcorders, computers, portable phones, CD players, toys, gadgets - well just about anything.
Q : Can I recharge ordinary alkaline throwaway batteries ?	top
Throwaway batteries cannot be recharged. You should never attempt to recharge a normal alkaline throwaway battery as this could result in fire. You can only recharge NiCd and NiMH rechargeable batteries.
Q : Can I recharge NiMh and NiCd batteries at the same time ?	top
No. You should never charge NiMH and NiCd batteries at the same time. TIP: You should always try to use and charge your batteries in sets.
Q : Do I need to charge my new batteries before first use?	top
Yes. All our NiMH and NiCd rechargeable batteries are supplied uncharged and must be charged before first use (except the new HYBRIO batteries). Best performance is reached after the first three or four recharges.
Q : What's the difference between NiCd and NiMH batteries ?	top
The main difference between the two battery types (NiMh Nickel Metal Hydride and NiCd Nickel Cadmium often referred to as NiCads) is capacity and memory effect. If you are under the illusion that rechargeable batteries are not very good then the chances are that you have been using older Alkaline rechargeable batteries (which ARE rubbish) or NiCd batteries suffering from memory effect and you have not been aware of the effects of Memory Effect. Modern NiMH rechargeable batteries do not suffer from memory effect and have a much higher capacity than NiCd batteries. If you are NEW to rechargeable batteries and are confused by the two battery types, then go straight to NiMH rechargeable batteries and you will not be disappointed. Performance: NiMH batteries greatly out-perform standard NiCd batteries in high-drain applications. Voltage: Both NiMH and NiCd have virtually the same voltage (1.2v). Capacity: NiMH batteries have more than twice the capacity of standard NiCd batteries. This results in much longer battery usage. Memory effect: NiMH batteries have No Memory Effect. NiMH batteries can be charged or “topped-up” at any time without affecting battery life. For NiCd batteries on the other hand, they should occasionally be fully discharged before recharging in order to achieve optimum performance. Environmentally friendly: NiMH batteries are free of toxic or hazardous elements such as cadmium, lead, mercury or lithium and can be used repeatedly and disposed of safely when finally thrown away Charging time: NiMH batteries generally take longer to charge than NiCd batteries due to their increased capacity Size: Both NiCd and NiMh batteries are exactly the same size.
Q : Why is it necessary to discharge NiCd cells before the process of charging?	top
You should discharge NiCd cells before every fifth to tenth process of charging in order to avoid the feared memory effect. The memory effect has the consequence that the not used parts of the cell due to partially discharging are no longer in a position to receive and produce energy. Consequently their operating times become shorter and shorter and the cells have to be recharged more frequently. This often misunderstood feature of NiCd batteries has possibly given some users a bad impression of rechargeable batteries in the past. Memory effect does not occur with NiMH batteries.
Q : What is the difference between older rechargeable alkaline batteries and the latest NiMH rechargeable batteries?	top
In short, the rechargeable alkaline battery was a load of rubbish and gave some people a bad impression of rechargeable technology. If you've used rechargeable alkaline batteries in the past and were disappointed, or were told that rechargeable batteries were a waste of time prepare to be impressed by today's NiMH rechargeable batteries!
Q : What is the Memory Effect of a NiCd battery? How can I avoid it?	top
If a NiCd battery has not been entirely emptied before the next charge, the chemistry of the NiCd battery will start to play tricks with you. Over time it will appear that the battery is no longer holding a charge. This is called the "memory effect". To avoid this, it is best to occasionally discharge NiCd batteries entirely as this will ensure optimum performance and help lengthen the life of the battery. Memory effect does not occur with NiMH* Nickel-Metal Hydride batteries*.
Q : My batteries get warm when I charge them. Is this normal?	top
When charging rechargeable batteries, they do increase in temperature substantially due to internal resistance. Therefore the batteries may feel warm when the charge is completed. According to specification most NiMH batteries may heat up to 55° C during a rapid charge. This can certainly feel hot to some individuals.
Q : Can I leave my batteries in the charger until I need to use it?	top
When used with an overnight charger or a rapid charger with automatic switch off, NiMH batteries can be left in the charger for an extended period of time without leakage, explosion, or deformation. However, do not store the batteries in the charger if it is not necessary, and do not leave your batteries in your charger if it is switched on and charging (unless it has an automatic timer to switch it off). Always store charged batteries in a cool location. All our battery chargers come with full operating instructions.
Q : Why should I use rechargeable batteries ?	top
Rechargeable x 1000 = Battery Logic If it takes a battery it will take a rechargeable battery!.
Got a question you'd like an answer to ? email us questions@batterylogic.co.uk

	I'm New	Performance	Technical	Delivery
	Benefits	Which Charger?	General	about

The Worlds Favourite battery chargers
	Fast Universal Battery Charger	X-Press 300 Battery Charger	Uniross X-Press 700 Battery Charger	Uniross Sprint 90 battery charger
	£13.99	£11.99	£16.99	£17.99

	AA NiMH Batteries 2500mAh			AAA NiMH Batteries 1000mAh
	£7.99 inc delivery			£6.49 inc delivery
	C NiMH Batteries 2600mAh			D NiMH Batteries 2600mAh
	£5.99 inc delivery			£6.99 inc delivery

I'm New
	I'm New to rechargeable batteries, tell me a little bit more ..
	I've been told that rechargeable batteries are rubbish!!
	If rechargeable batteries are so good why is it that I never see them for sale in supermarkets along with the Duracells for example ?
Benefits
	How much money can I expect to save ?
	How Green are rechargeable batteries ?
Delivery
	How long does it take to deliver my order ?
	Can you deliver to an address other than my card statement address ?
	Do you offer a Next Day delivery option?
Performance
	When should I choose HYBRIO or normal NiMH rechargeable batteries?
	How much performance improvement can I expect using Uniross Ni-MH batteries instead of other batteries in my high drain device like a digital camera?
	Can I charge ultra high capacity 2500mAh AA batteries in my existing charger.
	What's the difference between a Standard, Fast and Ultra Fast charger ?
General
	My camera came with lower capcaity batteries than the ones I can see on the BateryLogic website. Can I use these high capacity batteries in my device?
	Can I recharge ordinary alkaline throwaway batteries ?
	When might I want to use a NiCd battery ?
	Why don't you sell any other makes of battery, I can only see Uniross ?
	How long will a rechargeable battery last ?
	Do I need to use a Uniross charger to charge Uniross batteries ?
	What's mAh all about ?.
	Can I charge my existing rechargeable batteries in a Uniross charger ?
	Do I need to charge my new batteries before first use?
	Can I leave my batteries in the charger until I need to use it?
	What's the difference between NiCd and NiMH batteries ?
	Can I recharge NiMh and NiCd batteries at the same time ?
	When should I choose HYBRIO or normal NiMH rechargeable batteries?
Which Charger?
	What is the difference between the range of chargers ?
Technical
	Tell me a little bit about mAh and what battery capacity is.
	Can I use 1.2 V rechargeable batteries in devices that usually take 1.5 V throw away batteries?
	My batteries get warm when I charge them. Is this normal?
	What is the difference between older rechargeable alkaline batteries and the latest NiCd & NiMH rechargeable batteries?
	What is the Memory Effect of a NiCd battery? How can I avoid it?
	Why is it necessary to discharge Ni-Cd cells before the process of charging?
about
	Who are Uniross, I've never heard of them?
	Is it true that you will not charge me delivery on my battery orders ?
	How secure is the site. Can you explain how the security works ?
	Can you show me what Battery Logic is ?

NiMH Rechargeable Battery and Battery Chargers