1800mAh 同2200mAh的PSP叉電有何分別

佢地既分別只係在於容量唔同，２２００ｍａｈ既係容量多ｄ
即係每次充完電可以玩既時間多ｄ
至於邊種好ｄ咁就當然係２２００ｍａｈ的
不過仲要考慮佢地既價錢啦

mAh is the unit of battery capacity. Higher the mAh, longer the battery will run. For ideal case, 1.8Hr of run time will be produced if 1 A of current is drawn from a 1800mAh battery, in real, the run time is only around 70%, 1.25 hr or less due to battery's internal resistance and chemical responses.