Samsung DIGI-MAX V4 Replacement Battery SB-L1437 3.7V 1500mAh

Samsung DIGI-MAX V4 / V5 / V6 / V50 — 3.7V Li-ion Replacement Battery (SB-L1437)

This 3.7V, 1500mAh Li-ion cell replaces the OEM SB-L1437 / SLB-1437 battery in Samsung DIGI-MAX V4, V5, V6, and V50 compact digital cameras. It fits the same physical slot and connects to the same battery contacts. Capacity matches the original — 1500mAh, 5.55Wh.

• DIGI-MAX V-series compatibility: The V4, V5, V6, and V50 share the SB-L1437 form factor, contact layout, and voltage rail. One cell fits the whole line because Samsung used a common battery bay across these compact models.
• Bench tested on actual hardware: We ran this cell through the DIGI-MAX charge and discharge cycle. The BMS accepted the cell, voltage held steady across the discharge curve, and the protection circuit tripped correctly at the low-voltage threshold.
• First-use charge cycle for DIGI-MAX cameras: Insert the cell and charge it fully inside the camera body or OEM charger before your first shoot. Some DIGI-MAX units need one complete charge cycle from the camera itself before the battery-remaining indicator reports accurate levels.

Flash recycling slowing down near the end of a charge on the DIGI-MAX V series

The built-in flash on DIGI-MAX compact cameras draws a sharp burst of current to recharge the capacitor between shots. As the cell approaches the bottom of its discharge curve — typically below 3.5V — that recharge current sags. The result is longer wait times between flash-enabled shots, not a dead battery. If recycling slows noticeably, check the battery indicator. Charging to full restores normal flash recycling speed immediately.

Battery percentage jumping on the DIGI-MAX display after fitting a new cell

The DIGI-MAX voltage-to-percentage mapping was calibrated against the original cell's discharge curve. A new replacement cell — even at the correct 3.7V nominal — may discharge at a slightly different rate across its voltage range. The camera's indicator reads voltage, not actual charge state, so it can jump when the new cell's curve diverges from what the firmware expects. Run two or three full charge-discharge cycles through the camera body and the indicator will stabilise as the BMS learns the new cell's behaviour.