GE GB-50 PowerFlex 3D Compatible Battery 3.7V 800mAh

GE 10502 PowerFlex 3D / G100 / PJ1 — 3.7V Li-ion Replacement Battery (GB-50)

This is a 3.7V, 800mAh Li-ion cell that replaces the GE GB-50 and GB-50A batteries. It fits the GE 10502 PowerFlex 3D, G100, PJ1, and DV1 digital cameras. Voltage and capacity match OEM spec exactly.

• Multi-model fit — 10502 PowerFlex 3D, G100, PJ1, DV1: These GE cameras share the same GB-50 cell form factor, connector orientation, and 3.7V nominal voltage rail. One cell works across the range without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the bench. The BMS accepted the cell without error, voltage held steady across the discharge curve, and the protection circuit tripped cleanly at the low-voltage cutoff threshold.
• First-install charge cycle on the 10502 PowerFlex 3D: Insert the cell and run one full charge cycle through the camera body or OEM charger before shooting. Some GE camera BMS systems need this initial cycle to calibrate the battery-remaining indicator and accept a new cell for accurate percentage display.

Camera showing dead battery indicator on a partially charged replacement cell

The GE 10502's battery indicator reads voltage thresholds mapped to the original cell's discharge curve. A new GB-50 replacement cell can present a slightly different open-circuit voltage at partial charge, which the camera misreads as critically low. This usually resolves after one full charge-to-discharge cycle inside the camera body. If the indicator still reads empty on a known-charged cell, charge to full via the OEM charger and check that the terminal voltage at the connector reads 4.1–4.2V before reinserting.

Battery percentage jumping erratically during a shoot

The GE G100 and PJ1 map battery percentage to discrete voltage steps rather than a continuous fuel-gauge algorithm. A fresh cell's discharge curve doesn't always align with those steps on the first few cycles, so the percentage can jump — for example, from 80% to 45% — without a real capacity drop. After two or three full charge cycles, the camera's voltage thresholds and the cell's actual discharge curve align more closely. If the jumping persists past three cycles, check the contact pins on the battery door for oxidation and clean them with a dry cloth.