Cells Per Unit: 6
Voltage Per Unit: 12V
Capacity: 21W @ 15min-rate to 1.67V per cell @25°C (77°F)

Spec Sheet
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HR 1221W is specially designed for high efficient discharge application. Its characteristics are a small volume, light weight and high discharge efficiency. It can be used for more than 260 cycles at 100% discharge in cycle service, up to 5 years in standby service.

With an isolated seal, it is not limited to direction or position in place. It can be put in a horizontal way, vertical way and sideways. Long life, low self-discharge rate and high reliability. It has safety, low resistance so recharge is easy and energy output is more remarkable. Cycle or standby (or float) use. High rate discharge construction. Deep discharge recoverability

Cycle Charge Characteristic