Intermec CK70 Compatible Battery 3.7V 6800mAh Li-ion

Intermec CK70 / CK71 — 3.7V Li-ion Replacement Battery (318-046-001)

This 3.7V 6800mAh Li-ion battery replaces the depleted or failing pack in the Intermec CK70 and CK71 rugged handheld computers. These devices are workhorses in warehouse picking, retail stocktaking, and field data collection — a dead battery stops a shift. This pack matches the OEM voltage, capacity, and connector spec for both models.

• CK70 and CK71 platform fit: Both models run the same battery bay, connector pinout, and BMS communication protocol. One pack covers either unit — no hardware modification needed.
• Bench tested on actual hardware: We cycled this pack through repeated scan-trigger and wireless radio draws simultaneously. The BMS held voltage within spec across combined inrush events and did not trip under sustained multi-function load.
• First-shift cradle protocol: After installing this pack, seat the scanner in its dock and run a full charge cycle before taking it to the floor. Scan trigger inrush current peaks when the cell is near minimum charge — a pre-charged pack stops the BMS from tripping false low-voltage cutoffs on the first pick run of the shift.

Cradle showing a charging error on a brand-new pack

A charging error on a new pack is almost always a contact resistance problem, not a faulty battery. Dock contacts on the CK70 cradle oxidise with daily insertions, and a new pack with clean terminals creates a resistance mismatch the charger interprets as a fault. Remove the pack, wipe both the battery terminals and the dock contacts with a dry cloth, then reseat firmly. If the error clears within 30 seconds of reseating, the pack and charger are both fine.

Scanner losing wireless connection during rapid scan bursts

The CK70 runs the scan imager and the 802.11 radio simultaneously during active picking. Each scan trigger pulls a current spike on top of the continuous radio polling load — together they can drag cell voltage low enough for the BMS to briefly cut output. This shows up as a dropped Wi-Fi session or a frozen screen mid-scan, not as a dead unit. Verify the pack is at full charge before the shift and check that the battery terminals are seated clean and flat against the bay contacts. A resting pack voltage of 3.7V or above before the shift starts prevents most of these mid-burst dropout events.