Specifications
About 12v 400Ah LiFePo4 Lithium RV battery
The 12v 400Ah Lithium RV battery system apply with high-quality lithium iron phosphate batteries, the battery system come with Double protection (hardware and software). That means, besides the software BMS system, we have another relay protection prevent over current/short circuit.
Optimized structure.
The battery system can effectively charge and discharge the battery pack for real-time monitoring and protection,The protection temperature for charging and discharging is set independently,To prevent any battery in the battery pack 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.
Safety and economical
12v 400Ah LiFePo4 Lithium RV 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.
With the Built in BMS. Can monitor each signel cell’s health. You can also install the monitor app to your mobile phone( android or Ios). connect the battery BMS by bluetooth. Easy to monitor the battery cells inside of pack.
Excellent discharge characteristics
lifepo4 prismatic battery With low internal resistance and high, flat voltage characteristics during strong current discharge, which ensures a wider application field. Like Golf cart, Lithium RV battery packs. or any other backup power systems.
Long cycle life
Prismatic lifepo4 battery cells 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 prismatic lithium iron phosphate battery provide Superior quality and cost-performance ratio
| Product Name |
12v 400Ah LiFePo4 Lithium RV battery |
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| Reference Made to | GB/T18287-2000, UL1642 and IEC61960-1:2000. | ||
| Battery Type | Lithium Iron Phosphate battery | Material | LiFePO4 |
| Part No.: | LFP12400 | Shape | Prismatic |
| Voltage/Capacity | 3.2V/50Ah | Sizes | 510*240*310MM |
| Weight | Approx. 58kg | Package | Metal |
| Charge | Voltage : 14.4±0.2 | Cycle life | 5000 cycles |
| Current : 80±5 | |||
| Discharge | Cut-off Voltage : 2.5V | ||
| Current : 1C | |||
| Warranty | One year | Delivery Time | 7-20 days, depending on stock and quantity. |
| Main Applications
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nominal voltage（V）：12.8 volt
nominal capacity（Ah）：400Ah
Output current（A）：less then 120A
Output voltage range（V）：10.0-14.4 volt
Standard Charging voltage（V）：14.4±0.2 volt
Standard charge current（A）：80±5 Amp
Overcharge protection（V）：Any string of voltage higher than3.65±0.05V
Over-discharge protection（V）：Any string of voltage below2.50±0.05V
Discharge over current protection（A）The first level: 120A for 5 seconds; the second level: 200A for 1 second
Discharge ambient temperature（℃）：-20—75℃
Charging ambient temperature℃）:-2—60℃
Storage ambient temperature（℃）:5—45
Humidity range:≤50%
Output plug type interface definition:Output positive and negative lead ends with 200A round terminals
Communication Interface:yes
Maintenance interface:yes
LCD display: yes
Bluetooth: yes
size（mm）:510*240*310
weight（kg）:≤58
Type of packaging material: Sheet metal shell
color: black
Wire exposed length（mm): 600
others:The battery volume shown in the new battery pack is random，Need to go through at least one complete charge and discharge cycle after the accurate（Charging: Charge to battery pack for automatic protection，Discharge: Discharge to battery pack for automatic protection）。
Protection board performance indicators
Overcharge protection Overcharge detection voltage:3.65±0.05V
Overcharge detection delay time；1000±300mS
Overcharge recovery voltage：3.40±0.05V
Over-discharge protection Over discharge detection voltage：2.50±0.05V
Over discharge detection delay time：1000±300ms
Over discharge recovery voltage：3.0±0.05V
Over current protection charge Over current protection current：120A
Charge over current detection delay time：2000ms
Discharge over current protection current:150/200A
Discharge over current detection delay time:5000/1000
Short circuit protection Protection conditions:Discharge short circuit
Detection delay time:150-500us
Protection release condition:Disconnect the short circuit
Temperature protection Charge high temperature protection:55℃
Charge high temperature protection restore:50℃
Charging low temperature protection:-2℃
Charging low temperature protection restore:2℃
Discharge high temperature protection:65℃
Discharge high temperature protection restore:55℃
Discharge low temperature protection：-25℃
Discharge low temperature protection restore：-20℃
Internal resistance Main circuit on – state resistance V=3.65V；R≤5mΩ
Balanced mode Charging; static
Start voltage 3200mV
Start differential pressure 20mV
Balanced current 30mA
communication UART defaultRS485 RS485
Current consumption
Working state 20mA
Dormant state 100uA
Deep sleep state 10uA
Battery pack maintenance rules
a) Battery pack at the factory charge of 30% -80%
b) Each time the battery pack is used for one month, the following checks should be made. If the fault is found, it should be excluded immediately.Found that the fault should be immediately excluded。
(1)All kinds of fasteners bolts, nuts are loose.
(2)Whether a variety of harness with no abrasions, with or without metal wire exposed。
c) When the battery pack is not used for a long time, the battery pack is fully charged and the output circuit breaker is turned off.And then turn off the output circuit breaker.It is recommended to make a charge every March or so.
