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[Grade A, Brand New Quality] EVE original grade A, 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%).
[JK BMS] JK New V19 PB2A16S20P BMS, 2A active balance current, 4.3-inch touch display, features overcharge protection, over-discharge protection, overcurrent protection, short-circuit protection, and cell balancing.
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DESCRIPCIÓN
xExperience 15 years of reliable energy with our 16kWh DIY LiFePO4 battery system, built around premium EVE MB31 Grade A cells. This DIY-friendly powerhouse offers a 200A continuous discharge and 10kW of output, managed by a smart JK BMS with 2A active balancing to maximize cell health. Stay in total control with real-time Bluetooth monitoring and enjoy the peace of mind that comes with an 8,000-cycle service life.
Wistek EVE MB31 LiFePO4 Cells Reviews - @Easypowerwall
Supply Original EVE Grade A, Brand New Prismatic LiFePO4 Cell
The battery cell features an intact and undamaged QR code; by using the serial number embedded in the code, you can consult the original manufacturer's test report to verify the cell's test results.(If you require a test report, please leave us a message.)
All cells have been matched for voltage, internal resistance, and capacity; therefore, no further balancing is required upon receipt.
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.
The busbar is constructed from copper, enabling it to carry high currents; its surface is coated with a layer of nickel to effectively prevent oxidation.
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
Residential Energy Storage System,UPS
ESPECIFICACIÓN
x
PRESUPUESTO |
|
Modelo |
EVE MB31 |
|
Capacidad nominal |
314 Ah (1004,8 Wh) |
|
Voltaje nominal |
3,2 V |
|
Número de ciclos |
≥ 8000 (25 °C a 0,5 P, 70 % de SO2) |
|
Voltaje de carga |
3,65 V |
|
Potencia de carga máxima |
0.5P |
|
Corriente máxima de descarga |
0.5P |
|
Calificación |
ESS |
|
Solicitud |
Sistema de almacenamiento de energía (ESS) |
|
Rango de temperatura (descarga) |
-30 °C ~ 60 °C |
|
Garantía |
5 años |
|
Peso neto |
5,6 kg |
|
Dimensiones (Ancho*Alto*Profundidad) |
174*72*208 mm |
|
Año de producción |
Enero-febrero de 2025 |
|
Informe de prueba de fábrica original |
Disponible |
| Especificación detallada | |
| Modelo de semental |
Perno M6 simple |
Devolución y envío
xPolítica de devoluciones
Puede devolver la mayoría de los artículos nuevos sin abrir dentro de los 30 días posteriores a la entrega para obtener un reembolso completo. También pagaremos los costos de envío de devolución si la devolución es resultado de nuestro error (recibió un artículo incorrecto o defectuoso, etc.).
Debe esperar recibir su reembolso dentro de las cuatro semanas posteriores a la entrega de su paquete al remitente de devolución; sin embargo, en muchos casos recibirá un reembolso más rápido. Este período de tiempo incluye el tiempo de tránsito para que recibamos su devolución del remitente (de 5 a 10 días hábiles), el tiempo que nos lleva procesar su devolución una vez que la recibimos (de 3 a 5 días hábiles) y el tiempo que lleva su banco para procesar nuestra solicitud de reembolso (de 5 a 10 días hábiles).
Si necesita devolver un artículo, simplemente inicie sesión en su cuenta, vea el pedido usando el enlace "Completar pedidos" en el menú Mi cuenta y haga clic en el botón Devolver artículo(s). Le notificaremos por correo electrónico sobre su reembolso una vez que hayamos recibido y procesado el artículo devuelto.
Envío
Podemos realizar envíos a prácticamente cualquier dirección del mundo. Tenga en cuenta que existen restricciones para algunos productos y algunos productos no se pueden enviar a destinos internacionales.
Cuando realiza un pedido, estimaremos las fechas de envío y entrega según la disponibilidad de sus artículos y las opciones de envío que elija. Dependiendo del proveedor de envío que elija, las estimaciones de la fecha de envío pueden aparecer en la página de cotizaciones de envío.
Tenga en cuenta también que las tarifas de envío de muchos de los artículos que vendemos se basan en el peso. El peso de cualquiera de estos artículos se puede encontrar en su página de detalles. Para reflejar las políticas de las compañías navieras que utilizamos, todos los pesos se redondearán a la siguiente libra completa.
Preguntas más frecuentes
x●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.
