Rechargeable Battery ReviewRechargeable Battery Review - Reuse your batteries up to 1,500 times, save money and stop creating toxic waste in the process of having to put your old standard batteries in the bin. This has to be a WIN, WIN, WIN situation. Of course rechargeable batteries do cost more to purchase upfront and you need to buy a good battery recharger but once you've done this you can start saving money and helping the environment at the same time. Which are the best Rechargeable Batteries?
Our first tip here is NOT to buy Ni-Cad (Nickel Cadmium) rechargeable batteries, Cadmium is highly toxic, Ni-Cad's are old technology batteries and have memory issues. There are still many cheap products coming out of China that use Ni-Cad batteries so look for the symbol shown here and don't buy them. So whenever you are looking for any product that uses rechargeable batteries make sure to check what type of batteries it uses.
Lithium-ion rechargeable batteries are the best quality hold more energy within the same size battery but the downside is they are more expensive to purchase. They also have a slower self discharge rate when not being used compared to Ni-MH batteries which means they will hold their charge for months rather than weeks, although the newer Ni-MH batteries such as Eneloop seem to have overcome this issue. So far Lithium-ion batteries don't come in standard sizes like AA, AAA, C, & D because the are designed to operate at higher voltage, around 3.7v and also if you accidentally put one in a charger designed for Ni-MH they could possibly catch on fire. Lastly make sure you purchase a good quality smart charger, these will ensure your batteries last a long time by not overcharging and charge at the correct rate.
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Ni-MH (Nickel Metal Hydride) batteries are probably the best rechargeable, most widely used, not too expensive and don't have memory issues as with Ni-Cad batteries. Each year the technology gets better, Sanyo now make a brand called Eneloop (pictured below) which come fully charged ready to use, can be stored for up to 12 months without losing their charge and now can be reused up to 1,500 times.
