Detailed Answer
Battery maintenance: 1. Lithium: avoid deep discharge (charge when the low-battery alarm sounds), avoid high temperature (>60°C causes swelling), use the original charger, store at 50% charge for long-term storage; 2. NiMH: full discharge and charge once a month (prevents memory effect); 3. Alkaline: remove when not in use (prevents leakage); 4. Charging: disconnect when full (prevents overcharging). Lider lithium battery versions last 3-5 years (500 cycles).
| Lithium | Avoid over-discharge/heat |
| NiMH | Monthly full charge/discharge |
| Alkaline | Remove to prevent leakage |
Note:If the battery swells, stop using it and replace it immediately.