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5kWh solar storage for motorhome, Connect LiFePO4 batteries in parallel.
Test: Li-ion Vs Li-Poly Vs LiFePO4 battery WANROY
F.A.Q.
Q:What is BMS and its function?
A: The BMS stands for "Battery Management System", the main function of the BMS is to monitor and optimize the performance, safety and lifespan of the battery.
Protection function:
1. Overload protection
2. Load monitoring and control
3. Deep discharge protection
4. Cell temperature protection
5. Surge protection
6. BMS temperature protection
7. Active Cell Balancing
8. Short circuit protection
Q: Does the WANROY 12V 200Ah LiFePO4 battery have built-in BMS?
A: Yes. All WANROY lithium iron phosphate batteries have built-in BMS. By the way, almost none of the lead-acid batteries on the market have a built-in BMS.
Q: Will WANROY 12V 200Ah LiFePO4 battery automatically block charging below 0°C?
A: Yes, due to the characteristics of LiFePO4 batteries, charging the battery below 0°C can potentially result in charging failure and damage to the battery cells. Therefore, the Battery Management System (BMS) has been configured with low-temperature protection.
If the temperature is lower than 0°, charging is not allowed, only discharging. When the temperature is lower than -20°, discharge is not allowed.
To learn more about BMS testing, please refer to this article: https://www.tueftler-und-heimwerker.de/wanroy-lifepo4-akku-solarspeicher-test/
Q: Will lithium iron phosphate batteries burn?
A: No, LiFePO4 batteries are safer, more stable and will not explode than other Li-ion batteries. For more information on how LiFePO4 batteries compare to other batteries, watch this test video: https://www.youtube.com/watch?v=aIy6S0TdSSE
Q: What happens when a LiFePO4 battery finds a short circuit?
A: LiFePO4 batteries hardly produce any sparks. The battery management system(BMS) can play a protective role.In this article you will learn more about the battery performance in the case of a short circuit https://www.tueftler-und-heimwerker.de/wanroy-lifepo4-akku-solarspeicher-test/
2,56 kWh off-grid energy storage system for home use
Note: The premise is that the light conditions are sufficient 600W photovoltaic panel can fully charge aIn theory, a 2,56kWh energy storage system in about 5 hours.
Long-term solution
Despite the higher price, LiFePO4 batteries are characterized bymuch lower operating costs, which means that the purchase paysfor itself very quickly. Over its lifetime, a LiFePO4 battery costsmore than 100% less than a standard AGM battery, making it aworthwhile investment and a smart long-term solution.
AGM
GEL
LIFEPO4
Price
300 €
300 €
899 €
Nominal capacity
2,56kWh
2,56kWh
2,56kWh
Return efficiency
80%
85%
100%
DoD
80%
80%
100%
Life cycle
500
1000
3000
Cost per kWh/€
0,37 €
0,17 €
0,11 €
Energy Flow = Nominal Capacity x Round Efficiency x Depth of Discharge x Battery Life
Perfect replacement for lead-acid batteries
12V 200Ah LiFePO4 battery x1 ≈ 100Ah Lead-acid battery x4
12V 200Ah LiFePO4 battery x1
100Ah Lead-acid battery x4
Operating temperatur
-20℃~+60℃
Operating temperatur
-20℃~+50℃
Life
over 15 years
Life
4 years
Will it explode?
Under severe collision conditions
No
Will it explode?
Under severe collision conditions
Yes
Integrated BMS
Yes
Integrated BMS
No
Cost
899 €
Cost
600 € (150 €/pc)
Environmental hazard
No
Environmental hazard
Yes
Size(L*W*H)
500x240x220mm
Size(L*W*H)
350x185x230mm
Weight
23 kg
Weight
66 kg
How long can 2,56 kWh the power the following devices?
(170W)
Coffee machine
15 H
(600W)
Hair dryer
4 H
Electric oven
(1000W)
2,5 H
Rice cooker
(100W)
25,6 H
Bread machine
(800W)
3 H
Electric heaters
(500W)
5 H
Precautions
Battery application
Do not use the battery as astarter
or traction battery forelectric vehicles, golf carts
Storage temperature
Recommended storage
temperature：-5 to +35℃
(23 to 95℉)
Operating temperature
Charge:：0℃ ~45℃
Discharge：-20℃ ~60℃
Series / parallel connection
Up to 4 in series and 4 in parallel
Reviews
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