combattery84

Discharge of nickel-cadmium batteries are generally kept, because it involves issues of dendrite, cell body that may be dissolved at the crystal to blunt sharp at, causing a short circuit. The general charge for Ni-MH battery can be 40-50% of the electricity, hydrogen and water to prevent reaction. But not too filling, to prevent danger.

The following is an excerpt from a company related to storage: Storage
1. Studies show that Ni-MH battery charging state storage better than to keep the battery discharge state storage performance, so it is best to store the battery before charging the battery.
2. The battery short-term storage of not more than 3 months, the battery can be stored in -20 ℃ - +45 ℃, relative humidity 45% - 85% of the place and no corrosion, high temperature easily lead to battery leakage, reduce the battery performance, high humidity can lead to corrosion of metal parts battery.SONY VGP-BPS9A/B battery Sony VGP-BPS10 battery SONY VGP-BPL13 battery
Battery the best long-term storage maintained at an ambient temperature of -10 ℃ - +30 ℃. The long-term storage of the battery after initial use, the capacity may be lower than the store before, but after several charge and discharge, the battery can store before the resumption of the performance. If the battery is stored for more than six months, suggested at least six months, the battery charge-discharge treatment time.
Reference: http://www.ni-mh.cn/bbs/dispbbs.asp?boardID=14&ID=561&page=1

After a long period of storage batteries, and battery has a natural discharge process, has the natural discharge is over, this does not affect battery capacity. The first charge, you should continuously charge the battery to 12 hours, and cycle to fully charge and discharge times (see the battery maintenance section) in order to wake up completely new battery, if this is not the battery is stored for a few months use, it is also recommended for three complete charge and discharge. If a battery by 12 consecutive hours after charge and discharge cycles, or three times still can not charge this battery can not be used needs to be replaced.