19
Feb
12

Smart Battery Chargers the Only Safe, Effective Way to Discharge NiMH Rechargeable Batteries


It is widely known that discharging a NiMH rechargeable battery is the best way to ensure lasting quality. What this means is, essentially, using up the battery’s life before using the battery charger to recharge it. This is the suggested method for recharging these batteries because the battery will adjust itself according to the amount of charge given. If, for example, you use your battery charger for recharging when you have only used 50% of the volts, your battery will ultimately run down more quickly in the future. Instead of doing this, you want to allow your NiMH rechargeable battery to run down almost fully before using a battery charger to charge it. Then, when you do charge it, you want to be sure to charge it fully.
This can be tricky, however, because it is also recommended to not let the battery actually run down to the point that it dies, but to instead use your battery charger when it has used 99% of its capacity. If you don’t catch it before then, the battery will run down to a lower point, which can also create damage known as cell reversal. This occurs anytime a battery discharge has been allowed to occur beyond the cut-off voltage point. If the battery is under a heavy load when this happens, even further damage can occur. So how do you know when is the right time to charge it?
That’s where smart battery chargers come into play.
These smart battery chargers, also known as battery analysers, can prevent the cell reversal that tends to occur when batteries are not discharged properly. They will apply a secondary discharge (recondition) that can drive the NiMH rechargeable battery down to a lower voltage before recharging it. In fact, the smart battery charger can take a battery down to 1 volt per cell before it recharges, which is the recommended amount to correctly charge the battery, prevent irreparable damage, and ensure that you get the longest life possible out of your rechargeable batteries.
For those who use their rechargeable batteries for work or through serious hobbies, such as for photography or other important battery-powered gear, using a smart battery charger is a wise idea. It is a simple switch that can prevent damage from being done to their NiMH rechargeable batteries, which can sometimes be their lifeline to their hobby or work tools.
Thanks for reading our article! Did you know that Electronics Warehouse has a wide range of smart battery chargers? Take a look at our complete line. As an added bonus, use promo code EWBLOG at checkout for 10% off your purchase, plus fast FREE shipping Australia wide. Look!

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