Quick Delivery Lithium Battery 12 Volt 120Ah 6000Cycles For Lead
Acid Replacement
How to choose a 12v litihum battery
Several factors need to taken into consideration when it comes to how to choose your own 12v lithium battery for your RV or Marine boats or Solar system. As a matter of fact, we do have many choices in the market for battery chemistry, dimension, discharge and charge power, cost and safety.
Lithium-ion (LiFePO4) batteries will be an ideal choice for most of the energy storage applications. Which is the safest material of all kinds lithium battery and has the longest lifecycles.
Compare with traditional lead acid battery, or gel battery, or even AGM battery, LiFepo4 battery has at least the following advantage:
1. smaller in size
2. lighter in weight
3. more powerful
4. discharge rate can reach 2c
5. fast charging capability, within 1hour can fully charged.
6. more stable in performance
7. will never catch on a fire, which is important for marine and for RV
8. has the longest lifecycles, especially for RJ 12V lithium battery, it has 6000cycles at 100% dod, almost 2 times than its competitors.
9. can be fully discharge with 100% capacity out of the battery. No redundant capacity needed.
10. Lifepo4 is the cheapest lithium battery in the market.
As for dimension factor, it is up to how many power you use per day, you can calculate it by simply adding the power of load together.
As for discharge and charge power, it depends on what kind of load it is. Note lifepo4 battery is not designed for engine cracking, it is for deep cycle energy storage use. So it is the best solution to solar off grid system, marine batery, golf car battery with 12v , 24v ,36v ,48v , RV camper, cavaran, golf trailer, electric forklift and some AGV robot. Generally speaking, to charge at 0.5C rate and to discharge at a 1C continuously rate and a peak rate at 2C is already enough for 99% applications in our life. If you are not sure about the specific charge and discharge rate you need, you can contact us for details info about it.
As for cost, you can buy it locally and in the internet, but the most economic way is to buy it directly from China Manufacturer, for example, you can purchase it from our RJ, as a lithium battery manfuacturer for over 16years, we can offer you good price with top quality. Because with todays e-commerce, we can cut off cost for distributors and middleman and be able to sell you directly, which enable us to save cost and give you more discount.
Last but not least, you should consider the warranty term and how many years a manufacturer can offer you on the 12v lithium battery. Take RJ for example, we offer 5years warrant on the 12v lithium battery and guarantted 6000cycles of our batteries, and if any manfuacture defective products, we can send you free of charge a brand new one and you do not need to send back the defective one. Such warranty term will give you 100% guranttee for after sales service. This is all the factors you should take into consider when you plan to replace your old lead acid battery with lithium battery.
| Items |
Parameter |
| Battery Type |
LiFePO4 |
| Nominal Voltage |
12.8V |
| Nominal Capacity |
120Ah |
| Energy |
1536Wh |
| Internal Resistance |
≤15mΩ |
| Series & Parallel Application |
up to 4 series 10 parallel connected application |
| Limited Charge Voltage |
14.6±0.2V |
| Floating Charge Voltage |
13.8±0.2V |
| Charge Method |
CC/CV |
| Discharge Cut-off Voltage |
10.0V |
| Charge Current |
40A (Customizable) |
| Continuous Discharge Current |
100A (Customizable) |
| Pulse Discharge Current |
200A (Peak) |
| Cycle Life |
> 6000 cycles |
| Dimension (mm) |
L325mm x W172mm x H232mm
|
| Weight |
13.5Kg |
| Charge Temperature Range |
0~45℃ |
| Discharge Temperature Range |
-20~60℃ |
| Recommended Operating Temperature |
15~35℃ |
| |
|
Built in BMS
| No. |
Item |
Test Item |
Creterion |
| 1 |
Voltage |
Charging Voltage |
DC:14.4V CC/CV |
| Balance voltage for single cell |
3.50±0.025V |
| 2 |
Current |
Balance voltage for single cell |
35±5mA |
| Current consumption |
≤50μA |
| Charging current |
40A |
| Rated continuous discharging current |
100A (Peak 200A) |
| 3 |
Over charge Protection |
Over charge detection voltage for single cell |
3.65V±0.025V |
| Over charge detection delay time |
0.7S—1.3S |
| Over charge release voltage for single cell |
3.550±0.05V |
| 4 |
Over discharge Protection |
Over discharge detection voltage for single cell |
2.50V±0.07V |
| Over discharge detection delay time |
1.6±0.5S |
| Over discharge release voltage for single cell |
3.00±0.75V |
| 5 |
Over current Protection |
Over current detection current |
500±50A |
| Over current detection delay time |
1.6±0.5S |
| Release condition |
Cut load |
| 6 |
Short Protection |
Detection condition |
Exterior short circuit |
| Detection delay time |
230uS—500uS |
| Release condition |
Cut load |
| 7 |
Resistance |
Protection circuitry (MOSFET) |
≤60mΩ |
| 8 |
Temperature |
Operating Temperature Range |
-40~+85℃ |
| Storage Temperature Range |
-40~+125℃ |
