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GHS 20
| Feature | Specification Details |
| Battery Model Code | BL-25BI / 25BI |
| Battery Type | Rechargeable Lithium-ion (Li-ion) |
| Massive Capacity | 2500 mAh (Unusually high for standard brick/feature phones, providing extreme multi-day standby) |
| Standard Voltage | 3.7V |
| Limited Charge Voltage | 4.2V |
| Watt-Hours | 9.25 Wh |
| Design Form Factor | Flat, slide-in removable block with gold-plated 3-pin contact terminals |
True Multi-Day Power: Thanks to its high 2500 mAh capacity paired with the low energy draw of standard feature phones, this battery is highly sought after because it can easily keep a device powered for 3 to 7 days of heavy call time and casual use on a single charge.
Integrated Safety Circuitry: Premium replacement versions features built-in Dual IC protection chips. This safeguards the battery cell and the phone against structural damage caused by overcharging, short-circuiting, high-pressure surging, or overheating.
High Lifecycle Durability: Engineered to maintain stable performance over a long operational lifespan, usually supporting 300 to 500 complete charge-and-discharge cycles before seeing any noticeable degradation in capacity.
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