Sokkia SHC5000 Replacement Battery 3.7V 13600mAh Li-ion

Sokkia SHC5000 — 3.7V Li-ion Replacement Battery (25260)

This 3.7V, 13600mAh (50.32Wh) Li-ion battery is a direct replacement for the Sokkia SHC5000 field controller. The SHC5000 is a survey-grade data collector used by surveyors and construction crews for total station control, data logging, and site documentation. Voltage and cell chemistry match the OEM specification (Part No. 25260).

• SHC5000 platform fit: The SHC5000 runs a single-cell Li-ion architecture at 3.7V nominal. This pack matches that voltage rail and the physical connector orientation exactly. The BMS handshake with the SHC5000's power management circuit was confirmed before listing.
• Bench tested on actual hardware: We cycled this pack under simulated field load — continuous GPS logging combined with Bluetooth data transfer — and confirmed the BMS held within the SHC5000's accepted voltage window without triggering a protection cutoff.
• Post-install calibration cycle: After fitting this battery, run a full calibration cycle through the SHC5000's instrument menu before your first field session. The device maps battery state during that routine, and skipping it causes premature low-battery warnings to appear mid-measurement even when capacity is adequate.

SHC5000 BMS cutoff when the total station connection initialises

When the SHC5000 wakes a connected total station via Bluetooth or cable, the device draws a sharp initialisation current in the first 200–400ms. If the battery's BMS has a conservative peak-current threshold — common in heavily discharged or cold packs — this spike trips the protection circuit before the handshake completes. The controller then shows a communication error rather than a battery error, which makes the root cause easy to misread. Warm the pack to above 15°C and charge it above 3.5V before connecting the instrument.

Pack won't charge after the SHC5000 sat unused in the carry case for months

Extended storage at low state-of-charge drops cell voltage below the BMS recovery threshold — typically under 2.5V — and the protection circuit latches into sleep mode. The SHC5000 charger may show no activity or a fault LED because the BMS is not presenting voltage to the charge circuit. Some chargers can recover the pack by applying a low pre-charge current for 5–10 minutes; if yours cannot, connect the pack to a Li-ion recovery charger set to 3.0V pre-charge until the cell voltage climbs above 2.8V, then switch to standard charge.