About this replacement
Zebra DS3600 / DS3678 Series — 3.7V Li-ion Replacement Battery (BTRY-36IAB0E-00)
This is a 3.7V, 3400mAh Li-ion replacement battery for the Zebra DS3600, DS3678, LI3600, and EVM series handheld barcode scanners. It replaces OEM part numbers BTRY-36IAB0E-00, 82-166537-01, and BT-000341-01. The cell and BMS match the original pack dimensions and handshake protocol used by the DS3600 platform.
- DS3600 / DS3678 platform fit: These models share a common battery bay, connector pinout, and BMS communication protocol. One pack covers the full DS36xx lineup, including variants deployed in cold-storage and outdoor environments where the host device queries the pack state frequently.
- Bench tested on actual hardware: We ran this pack in a DS3678 cradle and confirmed the BMS handshake completed correctly. The dock accepted the charge cycle without throwing a fault, and the scanner recognised the pack at startup without a soft reset.
- First-shift cradle protocol: After installing, seat the scanner in its four-slot cradle and complete a full charge cycle before pulling it for pick-and-pack work. Scan trigger inrush current spikes highest when the cell sits near minimum voltage, and a pre-charged pack prevents a false BMS trip at the start of the first shift.
Cradle showing charging error on a new pack
The DS3600 cradle reads battery state through the gold contact pins on the base of the scanner. If those contacts carry oxidation or debris from the old pack, the dock can misread the new cell's internal resistance and flag a charge fault. Wipe the contacts on both the scanner base and the cradle cup with a dry lint-free cloth, then reseat the unit firmly. If the fault clears on the second attempt, the contacts were the cause, not the pack. A persistent fault after cleaning points to the cradle itself, not the battery.
Scanner losing wireless connection during rapid scan bursts
During a fast scan sequence, the DS3600 draws current simultaneously from the imager and the Bluetooth or Wi-Fi radio. That combined inrush can cause a momentary voltage sag on a cell that is below 3.5V. The BMS interprets the sag as an unsafe discharge event and briefly throttles output, which drops the radio connection before the scanner recovers. The fix is to ensure the pack is above 3.6V before starting a high-volume scan session — check the charge level indicator on the scanner before pulling it from the cradle.