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[Grade A, Brand New Quality] EVE original A-grade, brand new MB31 cells, with intact QR, ready for assembly into high-voltage systems.
[Real Capacity 330Ah] Nomial capacity 314Ah, actual capacity 330Ah, higher energy density, compact size.
[Free Accessories] Provide all necessary accessories for DIY batteries, including screws, busbars, epoxy plates and other accessories.
[Already Matched] All cells have consistent voltage, internal resistance, and capacity, allowing for direct assembly without the need for balancing.
[Original Test Report] With the original test report, all battery cell test data is traceable, capacity range 330.0011-332.9999Ah, internal resistance range 0.1702–0.1836 mΩ, voltage range 3.2650-3.2678V
[8000 Cycles] At 25 ℃, 10%-90% humidity, the battery is subjected to a pressure of 300 kgf and a charge and discharge power of 0.5P. After 8000 cycles, the actual remaining capacity is greater than 70% (SOH ≥ 70%).
DESCRIPCIÓN
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PRESUPUESTO |
|
Modelo |
EVE MB31 |
|
Capacidad nominal |
314 Ah (1004,8 Wh) |
|
Voltaje nominal |
3,2 V |
|
Número de ciclos |
≥ 8000 |
|
Voltaje de carga |
3,65 V |
|
Potencia de carga máxima |
0.5P |
|
Corriente máxima de descarga |
0.5P |
|
Calificación |
A- |
|
Solicitud |
Sistema de almacenamiento de energía (ESS) |
|
Rango de temperatura (descarga) |
-30°C~60°C |
|
Garantía |
5 años |
|
Peso |
5,6 kg |
|
Dimensiones |
173*72*207 mm |
Celdas originales EVE LiFePO4
●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.
COMENTARIO
Disfrute de la batería de litio.
Gracias a nuestros clientes por compartir
Customer Reviews
Based on 12 reviews
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Super excited! First timer... here, lol!
Now power excites me and already thru this review thinking if I got enough of batt storage hehehe
*upgraded for flexible busbars - paid extra
Got one extra 🤪 (33 bars total)
**Shipping is/was/still or might be even higher after taffiff announcements.... pricey - $500!!
(when you want it,.. you must have it!
USA delivery - took under 40days.
Creating two 48v units for DIY RV application.
Ordered 32 cells.
***communication is great and on point!
When thought had some busbars missing, contacted Wistek via email and resolved in matter of a day! 👏
https://youtu.be/DdDCkL2ySuU?si=phZggl_oGGjRSxZB
Wowwwza!
Thank you team.
D
baterie dorazily ve stavu jak bylo uvedeno vše v pořádku
P
Very good batteries. Brand new and low internal resistance as advertised. I'm so happy. So far, my best LiFePO4 cell batteries supplyer
A
The cells are delivered on time they have perfect quality on a great packaging. The seller are professional.
F
I haven't batteries tested yet, but on all cells is on 1mV same voltage, 3,291V, excellent.
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