The smart thing to do when shopping for rechargeable AA batteries for your flashlight would be to seek out a suitable battery charger along with your purchase. To ensure you are aware of just what is happening during the charging process you can opt for a smart charger which displays relevant information. The La Crosse Technology’s BC500 portable battery charger works with NiCd and NiMH AA and AAA rechargeable batteries. The BC500 charges both AA and AAA rechargeable batteries simultaneously. You simply plug in the charger to the AC or car power adaptor, insert battery (batteries) and select one of charge, discharge/charge or test/charge modes.
All modes for the La Crosse BC500 charger automatically default to 500mA. The input voltage for the AC/DC adapter is 100-240 VAC. Maximum charging capacity of the charger is 3000 mAh. The BC500 automatically switches to trickle charge when charging is complete to ensure maximum battery capacity. The charger features overcharge detection to protect the battery. When charging is complete the LCD shows capacity in percentage charged for each battery. The La Crosse BC500 charger comes with 2 AA batteries, AC/DC power adapter, and car adapter.