Getting The Most Out Of Your Rechargeable Batteries
THEY COST A LOT BUT SAVE YOU A BUNDLE
Rechargeable batteries are used in cameras, remote controls, torches, etc, etc. and although they are quite an expensive outlay together with a suitable charger, they will nevertheless save you a bundle of cash because they can be used 30 to 100 times over, depending on the brand. If you compare the cost of 100 penlight batteries with the cost of 1 rechargeable battery, you will start to see the savings. They come in various sizes: penlight (AA and AAA), torch batteries (A) , square 9V types and others as well.
AN EXAMPLE OF SAVINGS
Usually a set of 4 rechargeable penlight batteries (size AA) with an included charger, will cost about 10 times what a pack of 4 non-rechargeable AA batteries cost.
Non Rechargeables x 4 = $1.80 After replacing the batteries 50 times: $90
Rechargeables x 4 + charger = $18 After replacing the batteries 50 times $18 (plus about $2 electricity costs)
So you would save at least $70 over the lifetime of just 4 rechargeables.
CAN YOU USE RECHARGEABLE BATTERIES IN ANY DEVICE THAT TAKES BATTERIES?
Yes. They will work fine in any device that they fit into correctly.
WHAT DOES NiCd AND NiMH MEAN?
NiCD stands for Nickle Cadmium and is an older technology. NiMH stands for Nickle Metal Hydride and is a newer technology with a number of benefits.
It can be recharged more often.
It does not suffer from the "memory effect" so it can be recharged when it is only slightly "used" or discharged with no ill effect. The NiCD type like to be fully discharged before being recharged.
It can hold more charge so it will last longer before needing a recharge.
These batteries are rated in mAh, or milli amp hours, usually printed on the side of the battery. eg: 2600mAh. This is the amount of charge they can hold. A 2600mAh battery will keep your device going for longer than a 1700mAh battery.
HOW LONG WILL A RECHARGEABLE BATTERY LAST?
Some of the lower quality brands will allow you to recharge them 20 or 30 times, while quality brands will allow 100 or more recharges before the battery starts to underperform. (Some boast of 1000 recharges; but take this with a pinch of cynicism!) This normally means a year to 4 years before you have to replace the batteries with new ones.
Tried and tested types that perform OK: UniRoss Hybrio, Eveready Recharge.
HOW LONG CAN THESE BATTERIES BE STORED BEFORE USE?
The new NiMH batteries now have a technology called low discharge which allows the batteries to be stored on the shelf (or in your camera bag) for long periods. In a year they will only lose 15% of their charge. Older types of NiMH batteries have to be recharged every few months if left on the shelf.
ARE THESE BATTERIES ENVIROMENTALLY FRIENDLY?
They are mercury free but still need to be recycled. But they are definitely more enviromentally friendly purely because there are less of them to dispose of: in the example above: 4 as opposed to 400 of the non-rechargeables for the same amount of use.
So, make the switch to rechargeables and save yourself some cash and a lot of trips to the store!
Questions and Answers
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