Project Description
12v 300ah lithium ion battery pack
CMX 12v 300ah lithium ion battery pack is design with the latest LiFePo4 technology. Inside built by high quality Grade A cell Prismatic LFP. Combine the reliable BMS. It rated 8000 life cycles at 10 years warranty. Its a best choice for RV and other industry energy storage. CMX provide custom service on all 12v lifepo4 batteries. If 300Ah is not enough, please tell us, we can add more capacity.
12v 300ah lithium ion battery
Specifications
Deep cycle 12v battery
12v 300ah lithium ion battery apply with high-quality 4s lithium iron phosphate, the battery system come with built in BMS, possible for high power amps discharge. Total energy 3600Wh. This battery pack with built in LED or bluetooth function to monitor battery state.
Battery structure.
high power 12v battery system build by 4S BMS. can effectively charge and discharge the battery pack . The BMS prevent any battery overcharge, over discharge caused by damage, And can control the battery charge, discharge current, Ensure that the battery pack and applications are not damaged；To ensure that in the event of a short circuit failure when the output off and automatic balance of the application of the battery pack at any time in the best condition. high capacity rechargeable 12v battery build with a metal casing. it provids strong protection from any physical damage.
For DIY
If you are fan of DIY. This is the right site you are in. CMX also provide high Qaolity A grade prismatic 300ah and 310Ah large capacity LiFePo4 cells. Here for more details of the cell. Simply make your own battery pack with our large capacity LiFePo4 cells.
Safety and economical
Built in Bluetooth easy to monitor the battery from mobile phone anytime. The high capacity 12v lithium ion battery with LiFePo4 battery cells. Battery cell is tested before assemble. It does not have toxic chemicals and offers four times the power density at a third of the volume compared to lead acid. For these reasons it’s safe for household use.
Excellent discharge characteristics
high capacity 12v battery With low internal resistance and high, flat voltage characteristics during strong current discharge, possible working in high temperature environment. which ensures a wider application field. Like outdoor UPS/Solar System/marine/lithium rv system.
Long cycle life
12v 300ah lithium ion battery with long storage and long life cycles. It offers problem-free charge after long storage, permitting to use in a wide range of applications.
Safty Test:
- Over-charge test
- Over-discharge test
- Short-circuit test
- High-temperature test
- Fire test
- Squezzing test
- Pin-Prick test
- Fall down test
- Water immersion test
- Shooting test
FAQ
How long does it take to charge a smart battery 12v 300ah lithium ion battery
Just same like most of other rechargeable batteries. a 12v Lithium ion battery charging voltage is 12.6v if NCM cells inside. While if the battery form by LiFePo4, then it is 4 in series. Charging voltage is 14.6 volt. Charging time all depending on the Charger output current. For example, if we use a 12v 100A charger. Means we can fully charge the 12v 300 amp hours by 3 hours. If use a 12v 50A charger. we can fully charge it by 6 hours.
| Battery system technical parameters | |||
| Project | Parameter | Remarks | |
| Cell type | 48174133/lithium iron phosphate battery | 50ah battery | |
| System nominal voltage (v) | 12.8 | 8 strings | |
| System nominal capacity (Ah) | 300 | 5 and | |
| System nominal energy (KWh) | 3.6 | Minimum available power: 3.6KWh | |
| System operating voltage range (v) | 10V~14.6V | Monomer: 2.5v-3.65v | |
| Continuous charging current | 50A | – | |
| Continuous discharge current | 100A | Discharge power: 1.2kw | |
| Peak discharge current | 100A | duration:- | |
| cooling method | Natural cooling | ||
| Working temperature (°C) | -20℃-60℃ | ||
| Charging temperature (°C) | 0℃-50℃ | ||
| Protection level | IP54 | ||
| Insulation resistance (ω) | >30MΩ | ||
| Supply soc status | 50%±5% | ||
| Battery pack weight | 105KG±5KG | ||
| Number of cabinets | 1 | ||
| Smart Management system technical parameters (can be coordinated according to bms) | |||
| parameter | Product specifications | condition | |
| Working power | DC12/24V | / | |
| Balanced mode | Passive equilibrium | / | |
| Total voltage acquisition accuracy | ≤0.5%FSR | (fsr: full scale) | |
| Total current acquisition accuracy | ≤0.5%FSR | (fsr: full scale) | |
| Single cell voltage acquisition accuracy | ≤±10mV | ||
| Temperature acquisition accuracy | ≤±2℃ | / | |
| Insulation resistance detection accuracy | ≤5% | / | |
| Soc deviation | ≤5% | / | |
| Voltage collection period | ≤200ms | / | |
| Current collection period | ≤100ms | / | |
| Temperature collection cycle | ≤100ms | / | |
| Voltage balance balance | ≤±50mv | / | |
| protection | Overcharge, over discharge, over temperature, short circuit | Protection setting can be set | |
| way of communication | – | / | |
| letter of agreement | To be determined | / | |
| Display | LED or Bluetooth optional | / | |
| Cabinet color | black | ||
| installation structure and electrical principle | |||
| project | shape | Body size | |
| Battery connector |  |
Anderson plug |
|
Overcharge protection: When the battery is under the charging state, the voltage keeps going up. When the protection board detects that the voltage of any cell is higher than the overcharge protection value, the protection board will start timing immediately. When the time reaches the overcharge protection delay, the protection board will turn off the charging MOS tube, at that time, it cannot be charged.
Overcharge protection recovery: After the overvoltage protection appears on the protection board, the battery voltage will going down under the static or discharge state of the battery. When the protection board detects that each voltage is lower than the recovery voltage of the overcharge protection, the protection board will output a signal and turn on the charging MOS tube to charge.
Over-discharge protection: When the battery is under the discharge state, the voltage keeps going down. When the protection board detects that the voltage of any cell is lower than the overcharge protection value, the protection board will start timing immediately. When the time reaches the over discharge protection delay, the output signal of the protection board will turn off the discharge MOS tube, the load lock circuit will work, but, it cannot discharge at this time.
Over discharge protection recovery: After the over discharge protection appears on the protection board, the battery voltage will going up under the static or discharge state of the battery. When the protection board detects that each voltage is higher than the recovery voltage of the over discharge protection. At this time, disconnect the load or charge, the protection board will output a signal and turn on the charging MOS tube to charge.
Overcurrent protection: When the battery is under the static or discharge state, the current suddenly increases. When the protection board detects that the current reaches the overcurrent protection value, the protection board will start timing at that time. When the current duration in the circuit reaches the overcurrent protection delay time, the output signal of the protection board will turn off the discharge MOS tube, and the load lock circuit will work. At this time, the discharge cannot be conducted.
Overcurrent protection recovery: After the discharge overcurrent protection appears on the protection board, the discharge MOS tube is turned off, and the current in the loop becomes 0. At this time, the load is disconnected or charged, the output signal of the protection board will turn on the discharge MOS tube to discharge.
