Our products have stable performance, long cycle life, high energy density and stable discharge voltage.

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Compatible Model:

MCS-720B
MCS-740 siren
SR-740 PG2
SR-740 PG2 sirens
PG9901
PG9901
Burg Siren
Siren Res Fire
Siren PG9901
Siren PG9911

Battery Part Number:
2XER18505M
103-304742

1. Please carefully check the compatible model of the battery and the part number of the original battery to determine whether it is compatible with the device.

2. The size is consistent, and the installation is simple and convenient.

3. This product provides one-year after-sales service. If you have any questions, please let us know by email.

Instructions for use
1. Do not use a low-quality third-party adapter charger to charge the device.

2. Do not use in high temperature environment.

3. It is strictly prohibited to disassemble, heat, prick and squeeze the battery.

4. Please use the battery reasonably to eliminate potential safety hazards.