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

12v 300ah lithium ion battery

  • Nominal voltage: 12v
  • Nominal capacity: 300Ah
  • Discharge Capability: 100A
  • Battery type: Lithium ion battery
  • Casing: Metal
  • Energy: 3600Wh
  • Approved certifications: MSDS, UN38.3, CE
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Specifications

A high capacity rechargeable 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.

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

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 /
Cabinet color black
installation structure and electrical principle
project shape Body size
Battery connector Anderson plug

Anderson plug

12v 300ah lithium ion battery outdoor
  • 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.