This is a 12V 7AH rechargeable lithium iron phosphate battery suitable for a variety of uses including alarms systems, gate and garage door operators. The Lithium battery can be used for 3000-5000 life cycles. Depending on usage this can be 10 years or more. Lead acid and AGM get roughly 300-500 life cycles before their capacity is reduced substantially. Therefore, even though there is more upfront cost with a Lithium battery, the upgrade saves you allot of money over time. A typical charge or use cycle for a lithium-ion battery is 8 hours of use, 1 hour to charge and another 8 hours of use. No cool down period is needed. This allows the battery to be used continuously throughout a 24-hour shift, with downtime occurring only during short periods of opportunity charging.