About this replacement
Cilico F880 Series — 3.8V Li-ion Replacement Battery (CL5700 / CM1801)
This is a 3.8V, 5600mAh (21.28Wh) Li-ion battery for the Cilico F880, F880P, and F880PEU barcode scanners. It fits the same housing slot and uses the same connector as the original pack. Swap it in and the scanner powers on without any firmware or pairing changes.
- F880, F880P, and F880PEU compatibility: All three models run on the same 3.8V power rail and share an identical battery bay, latch, and contact layout. The BMS handshake protocol is also the same across the series, so the scanner's charge indicator and low-battery alert behave exactly as they did with the original pack.
- Bench tested on actual hardware: We ran this pack through charge-discharge cycles on the F880 platform. The BMS held steady under combined wireless radio polling and rapid scan trigger bursts — no false cutoffs or voltage sag events during the test runs.
- First-shift prep for pick-and-pack operations: After fitting the new pack, seat the scanner in its cradle and let it complete a full charge cycle before using it on the floor. Scan trigger inrush current is highest when the cell is near minimum voltage, and a fully charged cell prevents false BMS trips during the first shift's initial burst scanning.
Cradle showing a charging error on a brand-new pack
A charging error on first dock is almost always a contact resistance issue, not a fault with the battery or the cradle. The gold contacts on the battery's base can oxidise slightly during storage or pick up residue from packaging. Wipe the contacts on both the battery and the cradle with a dry cloth, reseat the pack firmly, and check that the latch clicks fully into place. The error clears on its own once contact resistance drops below the dock's detection threshold.
Scanner losing wireless connection during rapid scan bursts
The F880's radio module and the scan imager both draw current at the same moment during a rapid burst — the combined inrush can cause a brief voltage dip if the cell is already below 3.5V. When that dip hits the BMS threshold, the radio stack drops before the scanner's main processor does, which looks like a wireless dropout rather than a power fault. The fix is straightforward: recharge the pack before the shift rather than topping it up mid-shift in short intervals. If the problem repeats on a full charge, check that the battery contacts seat flush — a loose fit increases internal resistance and amplifies the voltage sag.