Tri-Tronics 1016200 Replacement Battery 9.6V 600mAh Ni-MH

Tri-Tronics 1016200 — 9.6V Ni-MH Replacement Battery (CUSTOM-27)

This 9.6V 600mAh Ni-MH battery replaces the original power cell in the Tri-Tronics 1016200 dog training collar. It restores the collar's stimulation and tone output after the factory battery degrades through repeated charge cycles. Dimensions are 57.23 x 29.10 x 28.79mm — confirm these against your collar's battery bay before ordering.

• Tri-Tronics 1016200 collar fit: The 1016200 collar runs a 9.6V Ni-MH cell to power its stimulation circuit and audible tone functions. This battery matches that voltage rail and form factor so the collar's BMS accepts the pack and reports a correct charge state.
• Bench tested on actual hardware: We cycled this battery through charge and discharge on the collar's own charging circuit. The BMS completed a full charge without tripping, and stimulation output held at rated levels across the test cycles.
• Ni-MH memory effect on training collars: Ni-MH cells in low-draw collar applications develop capacity loss when repeatedly charged from a high state of charge. Run the collar down to the low-battery indicator before each recharge to keep the full 600mAh available over the battery's service life.

Why the 1016200 collar shows a full charge but delivers weak or no stimulation output

Ni-MH batteries in training collars can read full voltage at rest but collapse under the brief high-current draw of a stimulation pulse. This is voltage sag — the cell's internal resistance has risen through degradation, so the pack can't sustain the load. The collar's protection circuit then cuts output to prevent damage. A new battery with low internal resistance restores the current delivery the stimulation circuit needs.

Collar not responding to the transmitter after a battery swap

After a power interruption, some Tri-Tronics collar units lose their pairing state with the transmitter and stop responding to commands. This is a BMS or firmware re-initialisation issue, not a battery fault. Power the collar fully on, then follow the pairing sequence in your transmitter's manual — typically holding the transmitter's on button while the collar is in range. Confirm the collar LED flashes the expected pairing confirmation pattern before resuming use.