Kastar 7.2V Ni-MH Battery For Honeywell Alarm Systems – Replaces 300-03864-1, L3000, L5000, L5100 – 1600mAh

Keep your Honeywell security system running strong with this Kastar 7.2V Ni-MH battery.

It’s a direct drop-in replacement for models like the L5100, L3000, L5000, and part number 300-03864-1.

With 1600mAh capacity, it’s built to keep your alarm powered up and ready.

This is brand new, sealed in original retail-ready packaging.

Made in China, but designed to meet OEM standards.

Note: Prop 65 warning applies to DEHP exposure.

Green casing, reliable performance, and a solid MPN: MH-L5100-2.

Don’t wait until your alarm starts beeping—swap it out now.