AccuPower AP2020 AccuManager 20 Super-Fast Battery Charger Accommodates all battery sizes: AAA, AA, C, D, 9V in any combination of sizes Batteries can be charged in any combination of battery chemistry (NIMH, NiCd, RAM) at the same time 6 charging channels with overvoltage and reverse-polarity detection Refreshing function prevents the memory-effect in new batteries and overrides it in older ones Comes with AC wall adapter &amp; DC 12V (car) adapters