[Grade A,Brand New Cell] EVE original battery cell, intact QR, 8000 cycles, manufactured in June.
[Assemble Immediately] Contains all the accessories of DIY battery and can be assembled immediately.
[Brand Battery Cells + High-quality BMS] EVE MB31 3.2V 314Ah battery cells and V19 JK-PB2A16S20P BMS.
[330Ah Real Capacity + 200A Continuous Output Current] MB31 has an actual capacity of 330Ah, and the BMS provides a continuous output of 200A discharge current and 10KW output power.
[Fast Delivery]Local European inventory, express delivery, and the waybill number will be provided within 24 hours.
DESCRIPTION
xThe EVE MB31 3.2V 314Ah LiFePO4 Cell will be shipped from our Poland warehouse, with a shipping time of 3-7 days.
The JK New V19 PB2A16S20P will be shipped from our China warehouse via express or air delivery, with a shipping time of 10-12 days.(BMS currently has no inventory in Europe.)
Wistek EVE MB31 Lifepo4 Cells Reviews - @Easypowerwall
Supply Original EVE Grade A, Brand New Prismatic LiFePO4 Cell
Single M6 Stud
The battery cell has been welded with a single M6 stud, which is convenient for DIY battery. It is recommended to use a torque of less than 6N.m for assembly.
Grade A,brand new quality
The battery cells have the original test report, the QR code is intact, and all the battery cell test data can be tracked.
Free Accessories
The battery cell comes with the necessary accessories, busbars, screws and epoxy sheets to assemble the battery pack.
New V19 JK PB2A16S20P BMS
(The difference between the new V19 BMS and the old V19 lies in the color of the signal line terminals. The new V19 uses color differentiation to more effectively prevent errors during assembly.)
Good packaging conditions
The battery cells are packed in cartons that meet the requirements of dangerous goods, with transparent tape wrapped around the outside to prevent rainwater from seeping into the cartons. Customized sponges are used to fix the cells, effectively protecting them from impact damage.
Wide Applications
SPECIFICATION
x|
Model |
EVE MB31 |
|
Nominal Capacity |
314Ah(1004.8Wh) |
|
Nominal Voltage |
3.2V |
|
Number of Cycles |
≥8000(25℃@0.5P,70% SOH) |
|
Charging Voltage |
3.65V |
|
Maxinum Charging Power |
0.5P |
|
Maxinum Discharging Current |
0.5P |
|
Grade |
ESS |
|
Application |
Energy Storage System(ESS) |
|
Temperature Range(discharge) |
-30°C~60°C |
|
Warranty |
5 Years |
|
Net Weight |
5.6KG |
|
Dimensions(W*T*H) |
174*72*208mm |
|
Year of Production |
January-February, 2025 |
|
Original Factory Test Report |
Available |
| Detailed Specification | |
| Stud Model |
Single M6 Stud |
Return&Shipping
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
●Advantages of Prismatic Batteries?
1. Larger monomer capacity.
2. Higher stability.
3. Higher security.
4. Higher space utilization.
5. Lighter weight.
2. Higher stability.
3. Higher security.
4. Higher space utilization.
5. Lighter weight.
●What is the series and parallel connection of batteries?
Both are how the battery is connected and is something you have to learn when assembling the battery.
Series connection: Connecting the positive pole of one battery to the negative pole of another battery increases the voltage of the battery pack, but the capacity remains the same.
Parallel connection: Connecting the positive pole of one battery to the positive pole of another battery increases the capacity of the battery pack, but the voltage remains the same.
Series connection: Connecting the positive pole of one battery to the negative pole of another battery increases the voltage of the battery pack, but the capacity remains the same.
Parallel connection: Connecting the positive pole of one battery to the positive pole of another battery increases the capacity of the battery pack, but the voltage remains the same.
●Are LiFePO4 batteries safe?
There is no doubt that LiFePO4 batteries are one of the safest lithium-ion batteries out there. Due to its chemical properties and safe internal structure, LiFePO4 batteries will not explode even if they are severely damaged (such as puncture/strong knocks).
●Can LiFePO4 batteries be mixed?
Generally speaking, it is best not to, but it depends on the situation.
It is best not to mix batteries of different brands, because there may be subtle differences;
It is also best not to mix batteries with different degrees of old and new, because the weakest battery in the battery pack will restrict the performance of the entire battery pack;
Never mix batteries of different chemical properties, this may kill your LiFePO4 battery, although there are ways to achieve it, it is definitely not recommended for battery beginners to consider;
Batteries with different capacities can be mixed, but the premise is that both batteries are 3.2V and connected in parallel.
It is best not to mix batteries of different brands, because there may be subtle differences;
It is also best not to mix batteries with different degrees of old and new, because the weakest battery in the battery pack will restrict the performance of the entire battery pack;
Never mix batteries of different chemical properties, this may kill your LiFePO4 battery, although there are ways to achieve it, it is definitely not recommended for battery beginners to consider;
Batteries with different capacities can be mixed, but the premise is that both batteries are 3.2V and connected in parallel.
●How are LiFePO4 batteries stored?
The most important thing is the temperature. LiFePO4 batteries are well stored at room temperature (15°C~25°C), but too low temperature may damage the battery. In an icy environment, you need to pay attention to the insulation of the battery. Alternatively, the battery can be stored in a dry and ventilated room at 50% SOC.
●What should I do when I receive cells?
After receiving the battery, please immediately check whether the insulating layer of the battery (usually a blue film) is damaged and whether the QR code is scratched. Also use a multimeter to check the voltage/internal resistance/capacity. Be sure to charge the battery to full voltage before using it for the first time.
●What is Grade A battery cells?
● Grade A: Cells perform to manufacturer specifications.
● Grade B: Cells under-perform or have other defects.
● Grade C: Cells are used, repackaged, salvaged, or damaged.
● Grade B: Cells under-perform or have other defects.
● Grade C: Cells are used, repackaged, salvaged, or damaged.
●When assembling, what torque should I use?
Although we have tested and found that the welding studs can withstand 15N.m torque, we still recommend using no more than 6N.m torque.
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