Kinetic MH120AAAL4GC Dog Collar Replacement Battery 4.8V 150mAh

KINETIC MH120AAAL4GC — 4.8V Ni-MH Replacement Battery

This is a 4.8V, 150mAh Ni-MH replacement battery for the KINETIC MH120AAAL4GC GPS dog collar. It slots directly into the collar to restore GPS tracking, activity monitoring, and real-time pet alerts. Capacity is taken from product data: 150mAh (0.72Wh).

• MH120AAAL4GC collar fit: This cell matches the voltage rail, physical footprint (31.30 x 21.56 x 11.04mm), and connector orientation of the MH120AAAL4GC collar. The collar's onboard BMS expects a 4.8V Ni-MH source — swapping to a different chemistry or voltage causes the firmware to reject the pack.
• Bench tested on actual hardware: We cycled this battery through charge and discharge on a collar unit. The BMS accepted the pack without fault codes, GPS lock resumed normally, and the charge circuit terminated cleanly at full capacity.
• First GPS acquisition after install: After fitting this battery, take the dog outside immediately. GPS trackers run a cold start after any power interruption — first fix can take 5–10 minutes outdoors. Subsequent warm-start updates are much faster. Do not judge battery performance from indoor signal.

GPS collar draining faster in rural or low-signal areas

In areas with weak cellular or GPS signal, the collar's radio and GPS module both increase transmit power to maintain connection. That draws significantly more current from a 150mAh cell than normal suburban use. The battery isn't faulty — the drain is real and expected. If your dog regularly travels through low-coverage zones, check the app's tracking interval setting and switch to a longer poll rate to reduce continuous GPS and cellular load.

Collar not syncing to app after battery replacement

Replacing the battery cuts power to the collar's Bluetooth and cellular radio, which clears its active session with the app. On restart, the collar must re-register with the network before the app sees it as online. Open the app, navigate to the device list, and force a manual refresh — most users see the collar reappear within 60–90 seconds of powering on outdoors. If it stays offline, toggle the collar's power button once to trigger a fresh registration handshake.