Tenergy Arlo Batteries 4-Pk or 8-Pk w Charger

Deal Chatter Electronics
2

If you have an Olight S10R II rechargeable LED Flashlight or similar, these should work nicely, right?

3

is it okay for alarm sensors?

4

If it uses a Li-ion 3.7V 650mA rechargeable RCR23A battery, or a CR23A non rechargeable battery, I would think so. I think it’s a bit of an odd-ball battery seeing more use.