SportDog V2GBATT TEK 2.0 GPS Collar Replacement Battery 3.7V 1600mAh

SportDog TEK 2.0 GPS Collar — 3.7V Li-Polymer Replacement Battery (V2GBATT)

This 3.7V 1600mAh Li-Polymer battery is a direct swap for the OEM V2GBATT cell in the SportDog TEK 2.0 GPS Collar. It fits the TEK 2.0, TEK-2L, and TEK-V2LT collar variants. Same voltage, same capacity, same physical footprint — nothing to modify.

• TEK 2.0, TEK-2L, TEK-V2LT fit: All three variants run the same 3.7V power rail and share the V2GBATT form factor. The connector and BMS communication protocol are identical across the range, so one part number covers all three collars.
• Bench tested on actual hardware: We cycled this cell through the TEK 2.0's charge management circuit and confirmed the BMS accepted the cell without fault flags. Charge termination and over-discharge cutoff both triggered at the expected thresholds.
• First GPS fix after installation: After fitting a new battery, take the collar outside immediately. The TEK 2.0 performs a cold-start GPS acquisition after any power interruption — allow 5 to 10 minutes in open sky before expecting a location lock. Subsequent wake-ups use a warm start and fix much faster.

Why the TEK 2.0 drains faster in remote or wooded terrain

In areas with weak GPS signal, the receiver stays active longer hunting for satellite lock, pulling more current than it would in open-sky conditions. Cellular signal loss compounds this — the TEK-V2LT's cellular module increases transmit power when tower distance grows, adding draw on top of the GPS load. Both radios running hard simultaneously cuts usable charge faster than the rated figures suggest. In dense timber or steep terrain, this is normal behaviour, not a fault with the battery.

Collar not appearing in the TEK app after a battery swap

Swapping the battery interrupts the collar's Bluetooth and cellular session, and the TEK app does not automatically re-register the device on power-up. Hold the collar's power button until the LED sequence completes, then open the app and initiate a fresh pairing from the device list. If the collar still doesn't appear, force-close the app, reopen it, and repeat — stale session data sometimes persists in the app cache. Once paired, confirm the collar shows a GPS fix outdoors before heading into the field.