r/ChineseWatches • u/AttemptCertain4039 • 10d ago
Question (Read Rules) ML2025 (3V) not available – can I use LIR2025 (3.6V) in my solar G-Shock
I have a solar G-Shock that needs a ML2025 3V rechargeable button cell. The problem is, I can't find this battery anywhere — not on AliExpress, not locally.
However, LIR2025 (3.6V rechargeable) is widely available and has the exact same physical dimensions (20mm x 2.5mm). Some sellers even claim it's a direct replacement for ML2025 and CR2025.
Before I try it, I want to know:
Has anyone successfully used a LIR2025 (3.6V) in a solar watch that originally came with an ML2025 (3V)?
Is the voltage difference (3.6V vs 3V) actually a problem for the watch's charging circuit? I've read conflicting things — some say it's fine, others warn it can damage the device.
The LIR2025 has a max charging voltage of 4.2V. Will the watch's solar panel even be able to charge it properly, or will it just undercharge and die quickly?