About this replacement
Pentax WG-1000 — 3.7V Li-ion Replacement Battery (D-LI96)
This is a 3.7V, 890mAh Li-ion cell matching the D-LI96 specification for the Pentax WG-1000 rugged compact camera. It fits the WG-1000 body directly and restores full camera operation when the original cell has degraded. Voltage and capacity match the OEM spec exactly.
- WG-1000 compatibility: The WG-1000 uses a single D-LI96 cell to power the imaging sensor, LCD, and onboard processor from one 3.7V rail. The connector and cell dimensions — 41.35 × 34.00 × 6.80mm — must match for the battery door to close and the BMS to register the cell correctly.
- Bench tested on actual hardware: We ran this cell through a full charge cycle and confirmed the BMS accepted the cell, reported a valid battery state, and discharged without triggering a low-voltage cutoff prematurely. Charge acceptance and terminal voltage held within spec at both cold and ambient temperatures.
- First-install charge cycle on the WG-1000: Charge the new cell inside the camera body using the OEM charger or USB port before shooting. The WG-1000 BMS maps its battery-remaining display against a full discharge curve — skipping this step can cause the indicator to read inaccurately for the first several cycles.
Why the WG-1000 battery indicator jumps around after fitting a new cell
The WG-1000 uses a voltage-threshold table to estimate remaining charge. A new cell has a slightly different discharge curve slope than the aged OEM cell the camera previously calibrated against. Until the BMS has seen one or two complete discharge and recharge cycles with the new cell, the percentage readout maps incorrectly to the actual voltage. This resolves after two to three full cycles — no fault with the cell itself.
Flash not fully recycling between shots on a new D-LI96 cell
Flash recycling draws a spike of current to recharge the capacitor between shots. If the cell voltage sags under that current draw, the capacitor takes longer to reach full charge and the camera delays the next shot or fires at reduced output. On a new cell this usually means the BMS has not yet accepted the cell fully — charge it once inside the camera body via the OEM charger. If the issue persists after two full cycles, check that terminal voltage under no load reads at least 3.6V.