About this replacement
CipherLab 9700 — 3.6V Ni-MH Replacement Battery (GB20H)
This is a 3.6V, 20mAh Ni-MH replacement battery for the CipherLab 9700 handheld mobile computer. Part number GB20H fits the 9700 directly — the same scanner used in warehouse pick-and-pack, retail stocktaking, and point-of-sale operations. When the original cell degrades and scan sessions get shorter, this is the direct swap.
- CipherLab 9700 fit: The 9700 platform uses a 3.6V Ni-MH cell at this form factor — 38.00 × 12.36 × 6.00mm — with a BMS that handshakes over the same connector. Voltage outside that range triggers a fault state and the scanner won't boot, so cell chemistry and voltage must match exactly.
- Bench tested on actual hardware: We cycled this pack through repeated scan-trigger inrush events and wireless polling loads. The BMS held voltage within spec throughout and did not trip on simulated burst-scan sequences across a full shift workload.
- First-install charging protocol: After swapping the pack, seat the scanner in its cradle and run a full charge cycle before starting a pick-and-pack shift. Scan-trigger inrush is highest when the cell is near minimum charge — a partially charged new cell can cause false BMS trips on the first scan burst of the day.
Cradle showing a charging error on a freshly installed GB20H pack
This happens most often when the dock contacts and the battery terminals have surface oxidation or residue from the old pack. The cradle reads contact resistance as a fault and stops the charge cycle before it starts. Wipe the battery terminals and the cradle contacts with a dry cloth, then reseat the scanner firmly until you hear the dock click. If the error clears within 30 seconds of reseating, contact resistance was the cause — not a faulty cell.
Scanner losing wireless connection during rapid scan bursts
On the 9700, the wireless radio and the scan trigger draw current at the same time during fast barcode sequences. If the cell voltage sags under that combined load, the radio drops its connection before the scanner throws a low-battery warning. This is more pronounced when the pack is below 50% charge. Charge the pack fully before high-frequency scan sessions and check that the wireless polling interval in the scanner's config is not set to its minimum — aggressive polling amplifies the voltage sag.