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This battery is specially designed For Fire Alarm, Lightning, Security System, UPS and Others . It has a useful life of 3-5 years and strong when use. It is made of very quality materia and strong plastic casing. It can be stored for up to 1 year at 25C(77F) and then a freshening charge is recommended. NB6-7 has expected life up to 5 years in standby use. It has low self-discharge rate and lower than 3% capacity loss per month. |
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