Battery Specification
| Model | 601844-2S-20C | Capacity | 450 mAh |
|---|---|---|---|
| Nominal Voltage | 7.4 V | Max Charge Voltage | 8.4 V |
| Internal Resistance | <70 mΩ | Typical Weight(Cell only) | 20.4 g |
| Cell dimensions (T×W×L) | 6.0*18*44mm（Height × Width × Length） | ||
| Pack dimensions (with PCM & wires) | 12*18*47mm（Height × Width × Length） Note: Final dimensions may vary depending on PCM placement, wire routing, connector type, or custom installation requirements. | ||
| Connector | Molex/JST/Customized | ||
| Charging Temperature | 0℃ to 45℃ | ||
| Discharging Temperature | -20℃ to 60℃ | Recommend Storage Temperature | Recommended storage temperature: Room temperature (15–35°C) Storage temperature range: -20–45°C (short-term) |
| Cycle Life |
100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% |
||
| Certification | Many of our factory’s products have already obtained certifications such as CE, RoHS, KC, PSE, FCC, UN38.3, MSDS, UL, CB and BIS | ||
| Model | 601844-2S-20C |
|---|---|
| Capacity | 450 mAh |
| Nominal Voltage | 7.4 V |
| Internal Resistance | <70 mΩ |
| Typical Weight(Cell only) | 20.4 g |
| Max Charge Voltage | 8.4 V |
| Cell dimensions (T×W×L) | 6.0*18*44mm（Height × Width × Length） |
| Pack dimensions (with PCM & wires) | 12*18*47mm（Height × Width × Length） Note: Final dimensions may vary depending on PCM placement, wire routing, connector type, or custom installation requirements. |
| Connector | Molex/JST/Customized |
| Charging Temperature | 0℃ to 45℃ |
| Discharging Temperature | -20℃ to 60℃ |
| Recommend Storage Temperature | Recommended storage temperature: Room temperature (15–35°C) Storage temperature range: -20–45°C (short-term) |
| Cycle Life | 100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% |
| Certification | Many of our factory’s products have already obtained certifications such as CE, RoHS, KC, PSE, FCC, UN38.3, MSDS, UL, CB and BIS |
Current Specs & Protection
| Standard Charge Current | 0.2C (0.09A) | Standard Discharge Current | 0.2C (0.09A) |
|---|---|---|---|
| Max. Continous Charge Current | 1.0C (0.45A) | Max. Continous Disharge Current | 20.0C (9.0A) |
| Discharge Cut Off | 5.5 V | Energy | 3.33 Wh |
| Configuration | 2S1P | Pcm/Wire | Yes / Optional / Customized |
| NTC | NO / Optional | C-rate | 20.0C |
| Self Discharge Rate | ≤ 3%/month (at 25°C) | Short Protection | Yes |
| Overdischarge Detection | Typical per-cell trip 2.5–3.0V (common options: 2.5V / 2.7V / 2.8V / 3.0V), delay 20–120ms, release 2.9–3.2V per cell. For high-rate discharge, UVP thresholds and delays are configured considering voltage sag under load, pulse current, and duty cycle, to avoid nuisance shutdown during high-current bursts while maintaining cell safety. |
Overcharge Detection | Typical per-cell trip 4.25–4.35V (common options: 4.25V / 4.28V / 4.30V / 4.35V, depending on cell chemistry and charger CV setting), delay 50–200ms, release 4.05–4.20V per cell. For high-rate applications, the OVP threshold and delay are finalized to ensure compatibility with the charger regulation accuracy and to prevent false triggering during high-current operation |
| Overcurrent Detection | High-rate packs are configured based on continuous/peak current (pulse profile), thermal conditions, and allowable voltage sag. Protection (OCP/SCP thresholds & delays) and hardware (MOSFET Rds(on), copper, wiring/connector ratings) are matched to the application to ensure stable output and safety | ||
| Standard Charge Current | 0.2C (0.09A) |
|---|---|
| Standard Discharge Current | 0.2C (0.09A) |
| Max. Continous Charge Curren | 1.0C (0.45A) |
| Max. Continous Disharge Current | 20.0C (9.0A) |
| Discharge Cut Off | 5.5 V |
| Energy | 3.33 Wh |
| Configuration | 2S1P |
| Pcm/Wire | Yes / Optional / Customized |
| NTC | NO / Optional |
| C-rate | 20.0C |
| Self Discharge Rate | ≤ 3%/month (at 25°C) |
| Short Protection | Yes |
| Overdischarge Detection | Typical per-cell trip 2.5–3.0V (common options: 2.5V / 2.7V / 2.8V / 3.0V), delay 20–120ms, release 2.9–3.2V per cell. For high-rate discharge, UVP thresholds and delays are configured considering voltage sag under load, pulse current, and duty cycle, to avoid nuisance shutdown during high-current bursts while maintaining cell safety. |
| Overcharge Detection | Typical per-cell trip 4.25–4.35V (common options: 4.25V / 4.28V / 4.30V / 4.35V, depending on cell chemistry and charger CV setting), delay 50–200ms, release 4.05–4.20V per cell. For high-rate applications, the OVP threshold and delay are finalized to ensure compatibility with the charger regulation accuracy and to prevent false triggering during high-current operation |
| Overcurrent Detection | High-rate packs are configured based on continuous/peak current (pulse profile), thermal conditions, and allowable voltage sag. Protection (OCP/SCP thresholds & delays) and hardware (MOSFET Rds(on), copper, wiring/connector ratings) are matched to the application to ensure stable output and safety |
Product Certification Form
Here are our battery types and related certifications records.Click to Find Your Needs
| Product model | Voltage | Capacity | Certification |
|---|
