Honeywell CK3B Barcode Scanner Compatible Battery 3.7V 5200mAh

Honeywell CK3B / CK3X / CK65 Series — 3.7V Li-ion Replacement Battery (318-034-001)

This 3.7V, 5200mAh Li-ion battery replaces the original pack in Honeywell CK3B, CK3X, CK3XR, and CK65 rugged handheld computers. It covers OEM part numbers 318-034-001 through to 318-046-031 and 318-063-002, including 50135498-001. These devices run warehouse picking, inventory management, and logistics scanning in shift environments where battery failure means downtime.

• CK3 and CK65 platform compatibility: These models share the same 3.7V battery bay, connector pinout, and BMS communication protocol. The pack slots directly into any of them and the device firmware reads state-of-charge correctly from the first power-on.
• Bench tested on actual hardware: We cycled this pack in a CK3X across combined scan-trigger and 802.11 radio loads. The BMS held the charge curve steady and did not trip during back-to-back scan bursts typical of high-throughput pick lines.
• First-shift charging tip for pick-and-pack: After installing, seat the scanner in its cradle and run a full charge cycle before your first shift. Scan-trigger inrush current spikes hardest when the cell is near minimum — a fully charged cell prevents the BMS from tripping false low-voltage cutoffs during the first hour of picking.

Cradle showing a charging error on a new pack

Honeywell CK-series cradles use contact pins to both charge and authenticate the pack. Oxidation or debris on the gold-plated terminals creates enough resistance to confuse the dock's charge controller, which then flags a fault rather than starting the charge cycle. This happens more often with replacement packs because the contacts are unused and may have a thin surface film from storage. Wipe the battery contacts and cradle pins with a dry lint-free cloth, reseat the pack firmly, and the charge indicator should switch to active within 30 seconds.

Scanner loses wireless connection during rapid scan bursts

On the CK3X and CK65, the 802.11 radio and the scan-trigger illumination draw simultaneously during a rapid burst. If the cell voltage sags under that combined load — common in an aging or deeply discharged pack — the radio drops its association before the scanner can finish transmitting the last read. The BMS on a fresh, fully charged 5200mAh cell keeps the voltage rail stable enough to sustain both draws concurrently. Charge the replacement pack fully in the cradle before putting it on a high-throughput scan line, and check that the cradle is reading an active charge state, not idle.