Lithium Polymer Battery Pack 503070 Li Ion 3.7v Lipo Battery 1200mah
1,Mechanical Characteristics | Cell: | 503070 | PCM: | YES | NTC: | NO | Weight: | 22g | Configuration: | 1S1P | Demension | 5*30*72mm | 2,Electrical Specification | Capacity: | 1200mAh | Nominal Voltage: | 3.7V | Energy: | 4.44Wh | Internal Impedance: | less than 180mΩ | Max. Charge Voltage: | 4.2V | Discharge Cut Off: | 2.75V | Max. Charge Current: | 1200mA | Max. Discharge Current: | 1200mA | Standard Charge Current: | 600mA | Standard Discharge Current: | 600mA | Charge Temp. Range: | Typically 0°C to 45°С | Discharge Temp. Range | -20°C to 60°С | Storage Temp. Range | 1 year at -20℃ to +30℃ | Cycle life: | 100 cycles ≥92% | 3 moths at -20℃ to +45℃ | 300 cycles ≥88% | 1 month at -20℃ to +60℃ | 500 cycles ≥80% | 3,Cell protection | Overcharge Detection : | 4.28 ±25mV (1 to 1.6sec delay, release 4.2V ±50mV) | Overdischarge Detection: | 2.5V ±50mV (115 to 175msec. delay, release 3.0V ±50mV) | Overcurrent Detection: | 2.5A to 4.0A (9 to 15msec. delay) | Short protection: | Yes | |
Other hot-sale Li polymer battery pack models, with stocks can accept mini order:
Model | Dimension | With PCM Dimension | Capacity |
302025 | 3.0*20*25mm | 3.2*21*27.5mm | 3.7V 100mAh |
302530 | 3.0*25*30mm | 3.2*26*32.5mm | 3.7V 180mAh |
401824 | 4.0*18*24mm | 4.2*19*26.5mm | 3.7V 180mAh |
402525 | 4.0*25*25mm | 4.2*26*27.5mm | 3.7V 200mAh |
483450 | 4.8*34*50mm | 5.0*35*52.5mm | 3.7V 850mAh |
502030 | 5.0*20*30mm | 5.2*21*32.5mm | 3.7V 240mAh |
502525 | 5.0*25*25mm | 5.2*26*27.5mm | 3.7V 180mAh |
503030 | 5.0*30*30mm | 5.2*31*32.5mm | 3.7V 430mAh |
523450 | 5.2*34*50mm | 5.4*35*52.5mm | 3.7V 1000mAh |
553444 | 5.5*34*44mm | 5.7*35*46.5mm | 3.7V 850mAh |
553640 | 5.5*36*40mm | 5.7*37*42.5mm | 3.7V 850mAh |
553759 | 5.5*37*59mm | 5.7*38*61.5mm | 3.7V 1400mAh |
602030 | 6.0*20*30mm | 6.2*21*32.5mm | 3.7V 300mAh |
602240 | 6.0*22*40mm | 6.2*23*42.5mm | 3.7V 500mAh |
602535 | 6.0*25*35mm | 6.2*26*37.5mm | 3.7V 500mAh |
602663 | 6.0*26*63mm | 6.2*27*65.5mm | 3.7V 1000mAh |
603030 | 6.0*30*30mm | 6.2*31*32.5mm | 3.7V 520mAh |
603040 | 6.0*30*40mm | 6.2*31*42.5mm | 3.7V 750mAh |
603048 | 6.0*30*48mm | 6.2*31*50.5mm | 3.7V 900mAh |
603450 | 6.0*34*50mm | 6.2*35*52.5mm | 3.7v 1050mAh |
702040 | 7.0*21*40mm | 7.2*22*42.5mm | 3.7V 500mAh |
753048 | 7.5*30*48mm | 7.7*31*50.5mm | 3.7V 1200mAh |
803035 | 8.0*30*35mm | 8.2*31*37.5mm | 3.7V 800mAh |
Detailed images:Li Polymer 503070 1200mah 3.7v lipo Rechargeable battery pack

Handling of lithium polymer battery cells
Soft Aluminum foil
- Easily damaged by sharp edge parts such as pins and needles, Ni-tabs, comparing with metal-can-cased LIB.
- Don’t strike li polymer battery with any sharp edge parts
- Trim your nail or wear glove before taking lipo battery
- Clean worktable to make sure no any sharp particle
- Sealed edge may be damaged by heat above 100°C, bend or fold sealed edge.
Prohibition short circuit
- Never make short pack circuit. It generates very high current which causes heating of the cells and may cause electrolyte leakage, gassing or explosion that are very dangerous.
- The LIP tabs may be easily short-circuited by putting them on conductive surface. Such outer short circuit may lead to heat generation and damage of the cell.
Mechanical shock
- LIP cells have less mechanical endurance than metal-can-cased LIB.
- Falling, hitting, bending, etc. may cause degradation of LIP characteristics.
Why Choose us:
Technology
- All-weather applicability (-30~60℃)
- Highly safe battery design technology with the newest electrolyte and separator technology applie
- Full Coverage of Battery Variety: Lithium ion Cylindrical battery, lithium polymer battery, LiFePO4 battery, Solar Energy Storage battery pack, square aluminum shell, Primary Battery, etc.
R&D
Experienced R&D team with over 60 engineers and advanced equipments for supporting OEM and ODM requirements.

Certificates-CE, RoHs, BIS, KC, CB, UL, MSDS, UN38.3, IEC61233 certificated.
Factory Tour:
Shenzhen Gold Power Eenergy Co.,Ltd is one of the leading battery suppliers in China.
We have started to offer various batteries including Li polymer battery, Lithium ion battery, LiFePO4 battery,
and customized battery pack since 2001.
