About this replacement
Honeywell ScanPal EDA52 — 3.8V Li-ion Replacement Battery (50172021-001)
This 3.8V 4500mAh Li-ion cell is a direct replacement for the Honeywell ScanPal EDA52 mobile computer. It fits the EDA52 used in warehouse, retail, and field operations where continuous scanning and wireless data transmission are required. Capacity is 17.1Wh — matched to the OEM specification.
- EDA52 platform fit: The EDA52 uses a single-cell 3.8V architecture with a BMS that monitors cell voltage and temperature before enabling the scan trigger and radio simultaneously. This pack meets those handshake requirements — the BMS negotiates correctly on first boot without forcing a low-voltage lockout.
- Bench tested on actual hardware: We ran this pack in an EDA52 unit through combined Bluetooth polling and rapid scan burst cycles. The BMS held stable across the draw peaks, and no thermal cutoff events occurred during sustained multi-shift simulation.
- First-shift preparation for pick-and-pack: After installing the pack, seat the EDA52 in its charging cradle and run a full charge cycle before starting the shift. Scan-trigger inrush current is highest when the cell is near minimum, and a fully charged pack prevents false BMS trips during the first high-frequency scan burst of the day.
Cradle showing a charging error on a new pack
Charging cradles for the EDA52 read pack state through gold contact pins on the battery face. If those contacts have fingerprint oil, dust, or manufacturing residue from a new pack, the cradle's charge controller sees elevated contact resistance and flags a fault. This is not a faulty battery — it is a contact issue. Wipe the battery contacts and cradle pins with a dry lint-free cloth, reseat the pack firmly, and the error clears. If it persists, check that the dock firmware is current, as older cradle firmware can misread the BMS handshake on packs with full charge states above 4.1V per cell.
Scanner losing wireless connection during rapid scan bursts
On the EDA52, the 2.4GHz radio and the imager fire simultaneously during fast scan sequences, creating a combined inrush spike that a degraded or low cell cannot sustain without a brief voltage sag. When the cell voltage dips below the BMS threshold — typically around 3.2V under load — the radio stack drops its connection before the scan completes. This presents as dropped Wi-Fi or intermittent Bluetooth, not as a scan failure, so it is often misread as a network issue. Charge the pack to full before a high-frequency scanning shift and verify cell voltage holds above 3.5V under load using the EDA52's battery diagnostics in device settings.