Battery Specification
| Model | 4080105-2S | Capacity | 4000 mAh |
|---|---|---|---|
| Nominal Voltage | 7.4 V | Max Charge Voltage | 8.4 V |
| Internal Resistance | <150 mΩ | Typical Weight(Cell only) | 140.0 g |
| Cell dimensions (T×W×L) | 8.0*80*105mm（Height × Width × Length） | ||
| Pack dimensions (with PCM & wires) | 8.0*80*108mm（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 | 4080105-2S |
|---|---|
| Capacity | 4000 mAh |
| Nominal Voltage | 7.4 V |
| Internal Resistance | <150 mΩ |
| Typical Weight(Cell only) | 140.0 g |
| Max Charge Voltage | 8.4 V |
| Cell dimensions (T×W×L) | 8.0*80*105mm（Height × Width × Length） |
| Pack dimensions (with PCM & wires) | 8.0*80*108mm（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 | 0.5C (2.0A) | Standard Discharge Current | 0.5C (2.0A) |
|---|---|---|---|
| Max. Continous Charge Current | 1.0C (4.0A) | Max. Continous Disharge Current | 1.0C (4.0A) |
| Discharge Cut Off | 5.5 V | Energy | 29.6 Wh |
| Configuration | 2S1P | Pcm/Wire | Yes / Optional / Customized |
| NTC | NO / Optional | C-rate | 1.0C |
| Self Discharge Rate | ≤ 3%/month (at 25°C) | Short Protection | Yes |
| Overdischarge Detection | For multi-series battery packs, the PCM/BMS is selected based on the required continuous current and peak/inrush current (including OCP trip thresholds, delay settings, and current-handling capability), together with per-cell voltage monitoring requirements. After the hardware version is selected, the over-charge and over-discharge thresholds (and balancing strategy, if applicable) are finalized. Alternative PCM/BMS versions are available if specific protection thresholds or delay requirements are needed. |
Overcharge Detection | Typical trip 4.25–4.30V (common options: 4.25/4.28/4.30V), delay 50–200ms, release 4.05–4.15V. (Pack-level thresholds scale with series count, e.g., OVP_pack ≈ OVP_cell × S.) PCM/BMS dependent) are selected based on the required continuous current and peak/inrush current. Our engineers will match the PCM/BMS to your application to ensure reliable operation and avoid nuisance trips. |
| Overcurrent Detection | Multiple PCM versions are available (e.g., low-current 0.2A/0.5A/1A and high-current 2.5A/5A/7A/9A; OCP delay typically 9–15ms, PCM dependent). Our engineers will match the PCM to your application to ensure the pack meets your device requirements | ||
| Standard Charge Current | 0.5C (2.0A) |
|---|---|
| Standard Discharge Current | 0.5C (2.0A) |
| Max. Continous Charge Curren | 1.0C (4.0A) |
| Max. Continous Disharge Current | 1.0C (4.0A) |
| Discharge Cut Off | 5.5 V |
| Energy | 29.6 Wh |
| Configuration | 2S1P |
| Pcm/Wire | Yes / Optional / Customized |
| NTC | NO / Optional |
| C-rate | 1.0C |
| Self Discharge Rate | ≤ 3%/month (at 25°C) |
| Short Protection | Yes |
| Overdischarge Detection | For multi-series battery packs, the PCM/BMS is selected based on the required continuous current and peak/inrush current (including OCP trip thresholds, delay settings, and current-handling capability), together with per-cell voltage monitoring requirements. After the hardware version is selected, the over-charge and over-discharge thresholds (and balancing strategy, if applicable) are finalized. Alternative PCM/BMS versions are available if specific protection thresholds or delay requirements are needed. |
| Overcharge Detection | Typical trip 4.25–4.30V (common options: 4.25/4.28/4.30V), delay 50–200ms, release 4.05–4.15V. (Pack-level thresholds scale with series count, e.g., OVP_pack ≈ OVP_cell × S.) PCM/BMS dependent) are selected based on the required continuous current and peak/inrush current. Our engineers will match the PCM/BMS to your application to ensure reliable operation and avoid nuisance trips. |
| Overcurrent Detection | Multiple PCM versions are available (e.g., low-current 0.2A/0.5A/1A and high-current 2.5A/5A/7A/9A; OCP delay typically 9–15ms, PCM dependent). Our engineers will match the PCM to your application to ensure the pack meets your device requirements |
Product Certification Form
Here are our battery types and related certifications records.Click to Find Your Needs
| Product model | Voltage | Capacity | Certification |
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