Description
50C 3000mAh NiMH Battery Product Attributes
Key Features:
1. Rechargeable nickel metal hydride cylindrical cell with 1.2V nominal voltage and 3000mAh nominal capacity.
2. Minimum capacity is 3000mAh when tested at 0.2C discharge to 1.0V.
3. Standard charge rate is 300mA for 16 hours.
4. Rapid charge rate is 1500mA for 140 minutes with -ΔV=5mV/pcs control.
5. Cell dimensions are D 25.0–25.5mm and H 48.5–50.0mm.
6. Internal impedance is specified as no more than 22mΩ after standard charge.
7. Cycle life exceeds 500 charge-discharge cycles under IEC61951-2:2017 test conditions.
| Type | Description |
|---|---|
| Category | Ni-MH Batteries |
| Battery Chemistry | Nickel Metal Hydride |
| Battery Type | Cylindrical Sealed Nickel Metal Hydride Battery |
| Model | GMCELL-50C3000mAh |
| Customer P/N | 2060098 |
| Issued Date | 2021-10-13 |
| Voltage – Rated | 1.2 V |
| Nominal Capacity | 3000mAh |
| Minimum Capacity | 3000mAh / 0.2C |
| Standard Charge | 300mA × 16hrs |
| Rapid Charge | 1500mA × 140min, -ΔV=5mV/pcs |
| Charge Voltage | Less than 1.6V before the end of standard charge |
| Open Circuit Voltage | Greater than 1.25V within 1 hour after standard charge |
| Closed Circuit Voltage | Greater than 1.2V with 0.86Ω load within 1 hour after standard charge |
| Internal Impedance | ≤22mΩ at 1000Hz within 1 hour after standard charge |
| Capacity Test | Discharge at 0.2C mA to 1.0V after standard charge and 1 hour rest; capacity shall be greater than or equal to minimum capacity |
| High Drain Discharge | 0.5C discharge to 1.0V within 1 hour after standard charge; discharge time ≥108 minutes |
| Self Discharge | Remaining capacity ≥70% of rated capacity after 28 days storage at 20±3℃ |
| Cycle Life | More than 500 cycles according to IEC61951-2:2017 |
| Standard Charge Temperature | 0–40℃ / 32–104℉ |
| Rapid Charge Temperature | 10–35℃ / 50–95℉ |
| Floating Charge Temperature | -10–40℃ / 14–104℉ |
| Discharge Temperature | -20–55℃ / -4–131℉ |
| Operating Humidity | 65% ±20% |
| Storage Within 1 Year | -20–35℃ / -4–95℉ |
| Storage Within 6 Months | -20–45℃ / -4–113℉ |
| Storage Within 1 Month | -20–50℃ / -4–122℉ |
| Recommended Storage Condition | Store at -20℃ to +35℃, preferably 15℃ to 25℃, in a clean, dry, ventilated place with relative humidity 85% max. |
| Dimensions | D 25.0–25.5mm; H 48.5–50.0mm; D1 7.5±0.2mm; H1 2.2±0.3mm |
| Weight | Approx. 64g |
| Insulation Resistance | Outer sleeve shall exceed 10MΩ |
| Overcharge Test | After standard charge, charge at 0.1C mA for 48hrs; no external deformation or leakage, and capacity shall be greater than or equal to rated capacity |
| Over-discharge Test | After 0.2C discharge to 1.0V and 24hrs with 0.86Ω load, capacity shall be no less than 80% of rated capacity after standard charge |
| Humidity Test | Standard charge, then store 14 days at 33±3℃ and 80±5% relative humidity; no liquid electrolyte leakage |
| Vibration Resistance | Amplitude 4mm, frequency 1000 cycles/min, continuous 60min in any direction; OCV fluctuation <0.02V and internal impedance change <5mΩ |
| Drop Test | Drop from 450mm onto hardwood board; OCV fluctuation <0.02V and internal impedance change <5mΩ |
| Short Circuit Test | 1 hour short-circuit test after standard charge; battery shall not explode, while leakage, deformation, or outer sleeve cracking is permitted |
| Safety Valve Performance – Over-discharge | Discharge at 0.2C to 0V, then 1C discharge for 60min; safety valve must start normally and battery shall not break |
| Safety Valve Performance – Overcharge | Charge at 0.5C mA for 5 hours; no explosion, while leakage, distortion, and outer package breakage are allowed |
| Low Temperature Discharge | After standard charge and 24hrs storage at 0℃±2℃, discharge at 0.2C mA at 0℃±2℃; discharge duration shall exceed 3 hours 30 minutes |
| Delivery Charge | Battery charge before delivery is specified as ≤50% fully charged |
| Storage Charge Note | Batch batteries should be stored with 50% electric charge; if storage exceeds 3 months, discharge at 0.2C to 1.0V and then add 50% electricity for storage |
| Warranty | 12 months |
| Transportation | Keep clean, dry, and well ventilated during transportation; prevent fierce vibration, impact, extrusion, sun exposure, and rain |
| Storage Placement | Packed cartons should be stacked less than 5 layers, with 5–10cm or more spacing between cartons for air circulation |
| Charging Method | Use the specified charger for Ni-MH batteries; all rapid charge methods should be discussed with GMCELL engineers |
| Safety Notes | Do not throw into fire, heat, collide, disassemble, short circuit, overcharge, reverse charge, or weld leads directly on the battery |