lead acid battery 12V-38AH

Description

Nominal voltage: *2V Nominal capacity (*0 hour rate): *8Ah Dimensions: Total height: 6.***-inch (**7mm) Height: 6.***-inch (**7mm) Length: 7.***-inch (**6mm) Width: 6.***-inch (**4mm) Mass weight: approximately *4.2kg Capacity (*5 degrees Celsius): *0Ah (*0 hours rate/2, **0mA) *8Ah (*0 hours rate/3, **0mA) *4.2Ah (5 hours rate/6, **0mA) *3Ah (1 hour rate/*3, **0mA) Four hours rate discharge cut-off voltage *0.2V/*3A Temperature dependency of capacity (*0 hours rate): **2% (*0 degrees Celsius) **0% (*5 degrees Celsius) *5% (0 degree Celsius) *5% (**5 degrees Celsius) Self discharge (*5 degrees Celsius): *0% (residual capacity after standing 3 months) *1% (residual capacity after standing 6 months) *2% (residual capacity after standing *2 months) Charge method (constant voltage): Cycle: initial current: *1.4A or smaller Control voltage: constant voltage *4.5V to *4.9V (per *2V cell *5 degrees Celsius) Float: control voltage: *3.6 to *3.8V (per *2V cell *5 degrees Celsius) Note: the above characteristics data are average values obtained within three charge/discharge cycles not the minimum values