Initial Measurements (2025-12-23)
- IKEA LADDA AA 2450 mAh, 1.2 V | Voltage: 1.44 V (100% charge)
- IKEA LADDA AAA 750 mAh, 1.2 V | Voltage: 1.47 V (100% charge)
- Soshine AAA LiFePO4 280 mAh, 3.2 V | Voltage: 3.39 V (100% charge)
- Soshine AAA Li‑ion 350 mAh, 3.7 V | Voltage: 4.17 V (100% charge)
Current Measurements (2026-01-27)
- IKEA LADDA AA 2450 mAh, 1.2 V | Voltage: 1.32 V (?% charge)
- IKEA LADDA AAA 750 mAh, 1.2 V | Voltage: 1.32 V (?% charge)
- Soshine AAA LiFePO4 280 mAh, 3.2 V | Voltage: 3.34 V (?% charge)
- Soshine AAA Li‑ion 350 mAh, 3.7 V | Voltage: 4.12 V (?% charge)
Conclusion
So far so good. The voltage readings show that all the tested batteries are still near a full charge. The safe takeaway is that they can all last at least one month. Let’s see what happens three months after the initial charge.