Bests & Worsts Reviews from Amazon

HOW TO CHOOSE A RECHARGEABLE BATTERY Since rechargeable battles have an enviromental impact with disposal, you want to buy the ones that work the best and lasting the longest. The best rechargable battery I have used (and I have been using rechargeable batteries for over a decade), are NIMH. THese batteries have the greatest advantages and the few disadvantages (as detailed below). My choce is base on 3 basic principles: Capacity, performance and self-discharge rate. Capacity is measure in mAh - think of this as the gas tank in your car. The higher the mAh, the bigger the "tank" and the longer the battery will work. Performance is a measure of ability to last in energy guzzling devices such as gaming consoles and digital cameras. Performance of NIMH batteries is nearly double that of the usuable disposable alkaline battery. This is similar to the need for high-octane gas in high performance cars. Self-discharge rate is how fast a fully charged battery loses its power ("leaky" gas tank). There are 2 types of NIMH batteries, LSD (low self-dischage) and non LSD. he LSD NIMH batteries will retain 75% of their charge for a year or longer. Non-LSD NIMH batteries lose about 15% of their charge in a month. Since I mostly use rechargeable batteries is "battery eating devices" and rarely store my batteries for more than a month, I use the non-LSD version. so now you have the information to look at the different paramenter of NIMH batteries and determine the best value for your battery usage. In my own experience, many LSD NIMH batteries have not performed as well as regular NIMH batteries. So I prefer the regular NIMH type. Brand is also important. I find energizer brand to be high quality, long lasting and reasonable priced.