556997 4500mAh 3.7V Lithium Ion Battery (A-grade cell）

556997 4500mAh 3.7V Lithium Ion Battery (A-grade cell）

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Battery Specification
Model 556997 Capacity 4500 mAh
Nominal Voltage 3.7 V Max Charge Voltage 4.2 V
Internal Resistance <120 mΩ Typical Weight(Cell only) 75.7 g
Cell dimensions (T×W×L) 5.5*69*97 mm （Height × Width × Length）
Pack dimensions (with PCM & wires) 5.5*69*99 mm（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 IEC62133、CE、UN38.3、CB2017
Model556997
Capacity4500 mAh
Nominal Voltage3.7 V
Internal Resistance<120 mΩ
Typical Weight(Cell only) 75.7 g
Max Charge Voltage4.2 V
Cell dimensions (T×W×L)5.5*69*97 mm （Height × Width × Length）
Pack dimensions (with PCM & wires)5.5*69*99 mm（Height × Width × Length） Note: Final dimensions may vary depending on PCM placement, wire routing, connector type, or custom installation requirements.
ConnectorMolex/JST/Customized
Charging Temperature0℃ to 45℃
Discharging Temperature-20℃ to 60℃
Recommend Storage TemperatureRecommended storage temperature: Room temperature (15–35°C) Storage temperature range: -20–45°C (short-term)
Cycle Life100 cycles ≥92%
300 cycles ≥88%
500 cycles ≥80%
CertificationIEC62133、CE、UN38.3、CB2017
Current Specs & Protection
Standard Charge Current 0.5C (2.25A) Standard Discharge Current 0.5C (2.25A)
Max. Continous Charge Current 1.0C (4.5A) Max. Continous Disharge Current 1.0C (4.5A)
Discharge Cut Off 2.75 V Energy 16.65 Wh
Configuration 1S1P 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 Typical trip 2.4–3.0V (common options: 2.5V / 2.7V / 2.8V / 3.0V), delay 20–120ms, release 2.9–3.2V.

PCM is selected based on required continuous and peak/inrush current (OCP trip & delay and current capability). OVP/UVP thresholds are then confirmed for the selected PCM version; alternative PCM versions are available if specific OVP/UVP settings are required.		 Overcharge Detection Typical trip 4.25–4.30V (common options: 4.25V / 4.28V / 4.30V), delay 50–200ms, release 4.05–4.15V.

PCM is selected based on required continuous and peak/inrush current (OCP trip & delay and current capability). OVP/UVP thresholds are then confirmed for the selected PCM version; alternative PCM versions are available if specific OVP/UVP settings are required.
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 Current0.5C (2.25A)
Standard Discharge Current0.5C (2.25A)
Max. Continous Charge Curren1.0C (4.5A)
Max. Continous Disharge Current1.0C (4.5A)
Discharge Cut Off2.75 V
Energy16.65 Wh
Configuration1S1P
Pcm/WireYes / Optional / Customized
NTCNO / Optional
C-rate1.0C
Self Discharge Rate≤ 3%/month (at 25°C)
Short ProtectionYes
Overdischarge DetectionTypical trip 2.4–3.0V (common options: 2.5V / 2.7V / 2.8V / 3.0V), delay 20–120ms, release 2.9–3.2V.

PCM is selected based on required continuous and peak/inrush current (OCP trip & delay and current capability). OVP/UVP thresholds are then confirmed for the selected PCM version; alternative PCM versions are available if specific OVP/UVP settings are required.
Overcharge DetectionTypical trip 4.25–4.30V (common options: 4.25V / 4.28V / 4.30V), delay 50–200ms, release 4.05–4.15V.

PCM is selected based on required continuous and peak/inrush current (OCP trip & delay and current capability). OVP/UVP thresholds are then confirmed for the selected PCM version; alternative PCM versions are available if specific OVP/UVP settings are required.
Overcurrent DetectionMultiple 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

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556997 4500mAh 3.7V Lithium Ion Battery (A-grade cell）

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