Project Description
12v 1000ah lithium ion marine solar power system battery
Coremax provide custom design for large 12v lithium ion battery, 12v 1000ah lithium ion battery system for Marine and 12v solar power system. Apply with LiFePo4 battery technology and Smart BMS system.

12v 1000ah lithium ion battery
Specifications
About 12v 1000ah lithium ion battery
The large capacity 12v battery apply with high-quality 4s lifepo4 battery cells, the battery system come with built in BMS and relay protections. Total energy 12kWh.
large 12v lithium ion battery structure.
The 12v 1000ah lithium ion battery system build by 4s lifepo4 prismatic battery cells. Each unit cell capacity is 50Ah. It come with can effectively charge and discharge the battery pack . large lithium battery 12v 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. The large capacity 12v lifepo4 battery also come with solid metal casing. Provide strong protection from any physical damage.
Safety and economical
12v 1000ah lithium ion battery does not explode or catch fire like lithium cobalt (found in cell phones and laptops etc). 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
large 12v lithium ion battery With low internal resistance and high, flat voltage characteristics during strong current discharge, which ensures a wider application field. Like 12v solar power system, Lithium RV battery packs, 12v lithium ion marine battery or any other backup power systems.
Long cycle life
large capacity 12v battery Provide long storage life with few limiting conditions. 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
Others:
- OEM orders are available and looking for long term distributors/dealers.
- Coremax 12v 1000ah lithium ion battery provide Superior quality and cost-performance ratio
No. | Item | Spec. |
1 | BMS working current | DC 12V |
2 | BMS working Volt range | 9V~32V |
3 | BMS working consumption | 10W |
4 | BMS Sleeping consumption | Less then 10mA |
5 | Cell voltage monitor range / accuracy / frequency | 0.3V~5V/0.5%/100ms |
6 | Total voltage monitor range/ accuracy / frequency | 1000V/1%/100ms |
7 | electric current transducer | FS700ET |
8 | Current monitor range/ accuracy / frequency | -300A~300A、0.5%FS、100ms |
9 | Temp. monitor range/ accuracy / frequency | -25℃~85℃、±2℃、100ms |
10 | Temp sensor quantity | NO.1 6; NO.2 6; No.3 6; NO.4 6 |
11 | Battery balance /current | 130mA |
12 | SOC estimate accuracy | ±5% |
13 | control relay | 7 pcs |
14 | CAN | |
15 | RS485 | 2 RS485( touch screen 1,spare 1) |
16 | terminal resistance | |
17 | Standard | QC/T897-2011 |
NO.1 | Item | spec | time | handling |
1 | Over voltage 1 | 3.55V | 3S | warning |
2 | Over voltage 2 | 3.65V | 3S | Cut-off contactor |
3 | Under voltage 1 | 2.75V | 3S | warning |
4 | Under voltage 2 | 2.5V | 3S | Cut-off contactor |
5 | Differential Volt 1 | 300mV | 10S | warning |
6 | Differential Volt 2 | 400mV | 10S | Alarm |
7 | Discharge high temperature 1 | 55℃ | 5S | warning |
8 | Discharge high temperature 2 | 60℃ | 5S | Cut-off contactor |
9 | Discharge low temperature 1 | -5℃ | 5S | warning |
10 | Discharge low temperature 2 | -20℃ | 5S | Cut-off contactor |
11 | Charging high temperature 1 | 55℃ | 5S | warning |
12 | Charging high temperature 2 | 60℃ | 5S | Cut-off contactor |
13 | Charging low temperature 1 | 5℃ | 5S | warning |
14 | Charging low temperature 2 | 0℃ | 5S | Cut-off contactor |
15 | heat difference 1 | 15℃ | 5S | warning |
16 | heat difference 2 | 20℃ | 5S | Alarm |
17 | SOC 1 | 15% | / | warning |
18 | SOC 2 | 10% | / | warning |
19 | Discharge Over current 1 | 250A | 5S | warning |
20 | Discharge Over current 2 | 300A | 5S | Cut-off contactor |
21 | Charging Over current 1 | -350A | 5S | warning |
22 | Charging Over current 2 | -600A | 5S | Cut-off contactor |


