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standards. The specific problem is: style, grammar, duplication.
(October 2012)| lead acid car battery |Specific energy||30–40
Wh/kg| |Energy density||60–75 Wh/l| |Specific power||180 W/kg|
|Charge/discharge efficiency||50%–92% | |Energy/consumer-
price||7(sld)-18(fld) Wh/US$ | |Self-discharge rate||3–20%/month
| |Cycle durability||500–800 cycles| |Nominal cell
voltage||2.105 V| Lead–acid batteries, invented in 1859 by
French physicist Gaston Planté, are the oldest type of
rechargeable battery. Despite having a very low energy-to-weight
ratio and a low energy-to-volume ratio, their ability to supply
high surge currents means that the cells maintain a relatively
large power-to-weight ratio. These features, along with their
low cost, make them attractive for use in motor vehicles to
provide the high current required by automobile starter motors.
Lead-acid batteries sales accounts for 40-45% of the value from
batteries sold worldwide (1999, not includ