Quote Originally Posted by Isetech View Post
My concern is the 7.2 amp charge current (max), most alarm systems are only 0.5 amps.
This simply means that you must not exceed 7Amps on your charger, the fact that the current charger is only 0.5Amps means that a flat battery will take 14 hours to charge fully.
If your charger was say 3.5Amps, then it would charge the battery in 2 hours.

Lithium is not like lead acid, where a slow charge over many hours to charge is the norm.

You can charge a Lithium battery at 50% capacity without any issue besides watching that the temperature remains below 40°C