18650 3.7v 4000mah 2pieces in Series for 3.7v 4000mah Lithium ion Battery Pack 1S2P with Li ion 18650 cells with ROHS, MSDS, UL, CE BIS ,KC approved,the following is the battery cell 3.7v , if you need other capacity cells or battery pack please contact with us .
18650 Li-ion Battery Specification:
| Product Name | 3.7v 4000mah Lithium ion Battery Pack |
Battery Model | 3.7V 4000mAh 18650 Lithium ion battery |
Nominal Capacity | 4000mah |
Nominal Voltage | 3.7V |
Battery Size | 36*65mm |
Charging Method | CC-CV (constant voltage with limited current) |
Charging Current | 0.5C |
Max. Discharge Current | 1C |
Operating Temperature | Charge: 0 to 45 °C |
Discharge:-20 to 60°C |
Safety Performance with PCB
| Item | Test name | Result |
1 | Over charge | No fire,no explosion |
2 | Over discharge | No fire,no explosion |
3 | Short Circuit | No fire,no explosion |
4 | Drop | No fire,no explosion,no leakage |
5 | Hot oven | No fire,no explosion |
6 | Crush | No fire,no explosion |
7 | Needle puncture | No fire,no explosion |
3.7V Li-ion Battery Feature & Advantage
1.Safety: safest Li-Ion battery, CE ROSH approved, built in PCM/PCB, none fire or explosive
2. Clean and Green energy, no toxic material contained
3. Powerful battery
4. Long life cycle, 80% capacity remain after 500 times deep cycle.
5. No memory effect,highly efficient charge anytime, no reduction of capacity
6. Operation temperature: -20~70°C
7.Small size, light weight:
8. Good performance at high temperature and high temperature resistance
9. Low self-discharge rate: < 3% monthly
18650 Li-ion Battery Application
1.Light: headlamp, emergency light, sloar flashlight, searchlight, lanten,bicycle light, LED light, military
flashlight, high-end flashlight, high power flashlight, bright flashlight.
2.Outdoor sports products: camping light, mountain bike light, solor emergency light, self-defense flashlight,
3.Customer electronics: MPS, Tablet PC. laptop, Bluetooth earphone, power bank, portable DVD player,
speaker, microphone, sound equipment, audio, Digital camera, vidican.
4.Home appliances products: electric mop, electric vacuum cleaner, electric children toys, electric shoes,
electric blanket.
5.Medical devices
6.Instruments and meters: water meter, gas meter.
7.Electric transportation vehicles: electric bike, electric car, e-scooter, electric motor
8.Power tools: electric drill, mower
9.UPS, GPS
Safety Precaution
1.Do not throw battery into water or make it wet
2.Keep the battery away from heat source(like fire or heater)
3.Do not throw the battery into fire or heat the battery
4.Forbid to hammer to trample the battery
5.Forbid disassembling the battery in anyway
