About this replacement
Grundig Frame A / Frame Fr — 2.4V Ni-MH Replacement Battery (2SN-3/5F60H-H-JZ1)
This is a 2.4V, 500mAh Ni-MH replacement battery for the Grundig Frame A and Frame Fr cordless handsets. It matches the OEM part number 2SN-3/5F60H-H-JZ1 and fits directly into the handset battery compartment. When the original cell loses capacity, this swap restores the handset to working condition.
- Frame A and Frame Fr compatibility: Both models share the same 2.4V two-cell Ni-MH pack format and connector orientation. The base station charges through the same contact points on both handsets, so one battery revision covers the full Frame line.
- Bench tested on actual hardware: We cycled this pack through the Grundig Frame base station and confirmed the charging circuit accepted it without fault indication. The BMS held charge termination correctly at full capacity.
- First-charge conditioning for Ni-MH handsets: Place the handset in the base for a full 16 hours before first use. Ni-MH cells in cordless phone packs ship partially discharged from storage. Skipping this slow initial charge leaves capacity on the table for the first several cycles.
Talk time shorter than expected on the first few cycles
Ni-MH cells do not deliver rated capacity straight out of the box. A new 500mAh pack typically performs at 70–80% of that figure for the first three to five charge cycles. This is a chemistry behaviour, not a fault with the cell. Full capacity stabilises after several complete discharge-and-charge cycles through normal handset use.
Base station shows no charge or error light after battery swap
Ni-MH packs stored in a warehouse drop below 2.0V open circuit over time. Some Grundig base stations reject a charge attempt when the incoming pack voltage sits below their acceptance threshold. To recover, remove the battery, let it rest at room temperature for 30 minutes, then reseat the handset firmly in the base. If the error clears within a minute, the pack has recovered enough voltage for the base to begin a normal charge cycle.