Lead-acid battery
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The lead-acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Planté. It is the first type of rechargeable battery ever created. Compared to modern rechargeable batteries, lead-acid batteries have... Wikipedia
Invention: Frenchman Gaston Planté
Charge temperature interval: Min. −35°C, max. 45°C
Charge/discharge efficiency: 50%–95%
Cycle durability: <350 cycles
Energy/consumer-price: 7 (sld) to 18 (fld) Wh/US$
Nominal cell voltage: 2.1 V
Self-discharge rate: 3%–20%/month