12V Battery Pack 4000mAh IFR26650 3.2V Battery Cell 4S1P Solar Street Light Battery
| Item | lifepo4 battery 12.8v 4000mah |
| Nominal capacity | 4000mAh |
| Nominal voltage | 12.8V |
| Discharge-cut off voltage | 8V |
| Charge cut-off voltage | 14.6V |
| Cycle life | 3000 cycles @ 80% DOD |
| Battery type | 12.8V 4000mAh Lithium iron phosphate battery |
| Cell combine | 4S1P-4PCS 26650 3.2V 4000mAh cells |
| Cell inside | IFR26650 3.2V 4000mAh |
| Battery Size | 54x54x72mm |
| Charge temperature range | 0-45C |
| Discharge temperature range | -20-60C |
| Charge method | CC/CV |
| Application | Solar panels / LED light |
Other hot sale Lifepo4 battery cell
| Lifepo4 Cylindrical Battery cell List |
| Model No. | Nominal Voltage | Typical Capacity | Size | Charge Rate | Discharge Rate | Weight(g) | Cycle life (80% DOD) |
| IFR10440 | 3.2V | 200mAh | 10.3*44.2 | 0.2-0.5C | 0.2-3C | 7 | ≧2000 |
| IFR14430 | 3.2V | 400mAh | 14.2*43 | 0.2-0.5C | 0.2-3C | 13 | ≧2000 |
| IFR14500 | 3.2V | 600mAh | 14.2*50.2 | 0.2-0.5C | 0.2-3C | 18 | ≧2000 |
| IFR16340 | 3.2V | 400mAh | 16.2*34.2 | 0.2-0.5C | 0.2-3C | 13 | ≧2000 |
| IFR18500 | 3.2V | 1000mAh | 18.1*50.2 | 0.2-0.5C | 0.2-3C | 34 | ≧2000 |
| IFR18650 | 3.2V | 1500mAh | 18.5*65.3 | 0.2-0.5C | 0.2-3C | 42 | ≧2000 |
| IFR18650 | 3.2V | 1800mAh | 18.5*65.3 | 0.2-0.5C | 0.2-3C | 62 | ≧2000 |
| IFR22650 | 3.2V | 1800mAh | 22.5*65.3 | 0.2-0.5C | 0.2-3C | 64 | ≧2000 |
| IFR26650 | 3.2V | 3400mAh | 26.5*65.3 | 0.2-0.5C | 0.2-3C | 85 | ≧2000 |
| IFR26650 | 3.2V | 3600mAh | 26.5*65.3 | 0.2-0.5C | 0.2-3C | 90 | ≧2000 |
| IFR26650 | 3.2V | 3600mAh | 26.5*65.3 | 0.2-0.5C | 0.2-3C | 90 | ≧2000 |
| IFR32700 | 3.2V | 6000mAh | 32.5*65.3 | 0.2-0.5C | 0.2-3C | 150 | ≧2000 |
Detailed images for 12.8V 4000mAh lifepo4 battery pack
FAQ:
Q: Can I use Lithium batteries mixing with other battery types?
A: If different types of batteries are used together, or new batteries are used with old ones, the difference in characteristics of voltage, capacity, etc. may cause over-discharge of the battery which is exhausted first, leading to swelling, bursting or fire.
Q: What will happen if the batteries with different capacity are packed together?
A: If the batteries with different capacity or new and old batteries are used together, leakage, zero voltage and so on might happen. If the batteries are rechargeable and are being charged, some batteries are overcharged and other batteries is not in full charged state. During the discharge, some batteries cannot discharge fully and other batteries might over discharge. This way, the battery will be damaged.
Q: What are the possible reasons for zero voltage or low voltage of the battery pack?
A: Short circuit or open circuit of the connector or wrong connection, de-soldering or cold solder joint between the batteries and lead, wrong connection between the batteries.
Q: What are the possible reasons if the rechargeable battery or rechargeable battery pack cannot be charged?
A: The battery is zero voltage or there is battery with zero voltage in the battery pack.
There is wrong connection inside the battery pack.
There is abnormally of electronic components and/or PCB inside the battery pack.
There is failure in charger.
Outer element causes the charging efficiency to be too low, such as extremely low or high temperature.
Customized lithium rechargeable battery packs
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.
Quality Control
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.
