Questions about burgler alarm and rechargeable backup batteries (Poss. B/W)

[Filliam H. Muffman]

I think any 7.2V battery pack that is within 10% of the listed capacity should be fine as long as the cover will close over it. You charge the battery by plugging it in to the circuit. Don't worry about charging it before installation unless you need it to work immediately.

It must not be a very smart charger if batteries get burned out from overcharging after only a year.