Recent content by eva-michael

We can provide sea shipment to door which is very cheap. For example, about 100use for 8 pcs 280Ah cells which is total 56KG. Our cells are all test before shipment. All well matching Grade A cells.

Brand new and Grade A cells. They are all matched and below 0.5mΩ.

Not include shipping yet. We are in Guangzhou. Will need to check shipping according to the delivery destination. But we are sure our cost will be low. Large quantity can arrange sea shipment.

Hello everyone, Recently, we have start coorperate with EVE Energy Co.,Ltd and offer EVE Prismatic LiFePO4 cells. Most of EVE cell are 1C discharge. 50Ah model is 3C discharge. They are mainly use in electric vehicles and energy storage. EVE are one of the top battery manufacturer. Their quality...

However, high quality ev power LiFePo4 cell will give a much better performance for high current discharge. Lower quality LiFePO4(actually use cheaper LiFePO4 material and manufacture craft) is mostly rated at Max 1 C. Even though, it can handle 20C discharge, it will reduce the cycle life of...

Single cell low voltage cut off for discharge is 2.0V for LiFePO4. That means two cell should stop discharge when it reachs 4V. Generally LiFePO4 energy discharge stage is from 3.3V to 2.0V.

Many big cities are crowded. In my region, driving a car will be even slower than riding a bicycle after get down from highway during commuting time. Small vehicles will be wise choice to anyplace nearby. Avoid traffic jam and no parking headache. The traffic jam is not caused by small vehicles...

When the battery pack cut off. Check voltage of all cell. Mark voltage of each cell 1__, 2,__, 3__, 4__, 5__, 6__, 7__, 8__, 9__, 10__, 11__, 12__ In your case, healthy cells should be still around 2.9-3.2V when battery pack cut off. Find out cell which voltage drop serously. Charge battery...

Too hot means low efficiency of power use..... Yuma motor from China Wuxi. 2000W version is max 65kph

Some years before, many bms builder will set single cell over charge protection voltage to 3.8-3.9V. LiFePO4 can handle this voltage without problem and this will make LiFePO4 cells have more time to balance all cells during charge step. But many users don't know and worry about it 3.9V single...

Can use 8S LiFePO4 29.2V charger to charge 7S Li-ion. Charge curve of LiFePO4 and Li-ion are similar which is quite different from SLA battery.

A high speed bicycle knocked and killed a female runner when she cross motor way at yesterday night. Note: just a MTB. Ebike and bike are not guilty but sometimes people................. To protect yourself and others, take care, follow traffic rules and no traffic violation.

Only guidline No more than 40KG and no more than 20KM/h. ---non-motorized vehicle more than 40KG or more than 20KM/h. ---automotive vehicle But the key point is not about auto or not. But lack of management. If ebike give them too much pressure for city management, they just tend to BAND. Of...

Government can get a lot of tax income from large amount of cars in their city. And they are willing to enhance road situation for cars. But do not have much zeal to build road for bike, ebike or moped which do not make much tax income. China have large population and big cities have heavy...

36V is just a rated voltage. It does not mean it just output directly 36V. According the the feature of chemistry of different type of battery, a suitable charge programme(Charge Curve) will be requires. Check the label in charger, it should show you a dedicated type of battery which the charger...