This article is come from http://www.batteriesshop.co.uk/
At present, the majority of laptop batteries and are based on industry-standard batteries are generally divided into two columns and square.
The cylinder-type batteries than 5 bigger battery, and the square the size of the batteries is roughly equivalent to the size of a Zippo lighter.
At present, the mainstream of the capacity of batteries: cylindrical for the 3.6 ~ 3.7V/2000 ~ 2200mAh, for a square 3.6 ~ 3.7V/1800 ~ 2
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000mAh, therefore, the use of batteries in the end the number of batteries, according to the above figures to be inferred, such as the IBM ThinkPad T40/T41 standards for battery 10.8V/4400mAh, it is the number of batteries 6, using a string of two-and three-way , Namely: the three core power in series to be 3 X 3.6V = 10.8V, the two groups after the series of batteries in parallel and then get 2 x 2200mAh = 4400mAh.
The IBM ThinkPad T40/T41 increase the battery for 10.8/6600mAh, then the number of batteries to 9, using a three-way and three-string, namely: the three core power in series to be 3 X 3.6V = 10.8V, the two groups After the series of batteries no longer be parallel 3 x 2200mAh = 6600mAh.
In general the expansion of the standard battery and battery to increase the difference lies in a parallel increase in the number of batteries to increase capacity.PA3211U-1BAS , PA3211U-1BRS , PA3228 , PA3228U-1BAS , PA3228U-1BAS , PA3228U-1BRS , PA3239 , PA3248 , PA3248U-1BAS , PA3248U-1BRS , PA3250 , PA3250U , PA3250U-1BAS , PA3250U-1BRS , PA3257 , PA3257U-1BAS , PA3257U-1BRS , PA3258 , PA3258U , PA3258U-1BAS , PA3258U-1BRS , PA3259 , PA3259U , PA3259U-1BRS , PA3284U-1BAS , PA3284U-1BRS , PA3285U-1BAS , PA3285U-1BRS , PA3285U-2BAS , PA3285U-2BRS , PA3285U-3BRS , PA3291U-1BAS , PA3291U-1BRS , PA3307U-1BAS , PA3307U-1BRS , PA3331U-1BAS , PA3331U-1BRS , PA3356U-1BAS , PA3356U-1BRS , PA3356U-2BAS , PA3356U-2BRS , PA3356U-3BAS , PA3356U-3BRS , PA3357U-1BAL , PA3357U-1BRL , PA3357U-2BRL , PA3357U-3BRL , PA3382U-1BAS , PA3382U-1BRS , PA3383 , PA3383U , PA3383U-1BAS , PA3383U-1BRS , PA3384U-1BAS , PA3384U-1BRS , PA3395U-1BRS , PA3399U-1BAS , PA3399U-1BRS , PA3399U-2BAS , PA3399U-2BRS , PA3400U-1BRS , PA3420U-1BAC , PA3420U-1BAS , PA3420U-1BRS , PA3421U-1BRS , PA3450U-1BRS , PA3475U-1BRS , PA3476U-1BRS , PA3478U-1BRS , PA3506U-1BRS , PA3534U-1BRS , PA3535U-1BAS , PA3535U-1BRS , PA3591U-1BAS , PA3591U-1BRS
