Li-Ion E-Bike Battery 10SP6 36V / 15.6 Ah




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Published on Jun 19, 2016

How to change standard bag with three lead batteries (total weight of 12 kg) for mini electric scooter??

Traditional SLA batteries have only two advantages, low price and the ability to give relatively large currents 3C or 4C. С=capacity.

For creation of a lithium battery instead of lead (SLA), we are faced with several problems, but the main is the current! The battery should be guaranteed to give currents up to 40 amperes, respectively, need to use a powerful BMS with radiator and temperature sensor.

The second task is to find the cells that are guaranteed gives 3C or 4C - it will give the one year warranty!

But these cells will more expensive than common .... there is no point in taking a cell with a low capacity of 2000 mAh or 2200 mAh, we shall to select a cell with high capacity - 2600 mAh battery, it will provide a large capacity, for our configuration 10s6p capacity amounts to 15.6 Ah.

In the process of manufacturing of batteries for electric bikes very important aspect is the rigidity of the inner cell attachment.

The most common cause of battery failure output (especially home-made) is “shaking” and unfixing during operation.

The connecting wires should not take the mechanical load, must necessarily be a special frame structure inside the battery.

Inside of our battery we uses a special frame which made by plastic holders (gratings with buckles), nickel-plated connectors tires will not tear on the mechanical load and this battery will never be unfix.

There is one more important aspect - which connector to be soldered on the battery output?

For the battery we select an industry standard - connector XT60.

The XT60 approval for current of 60 amps and is protected against sparks. All other needed connectors can be connected by special adapters.

For example, here is an adapter for electrical scooters most common in Europe and China, this adapter has bundled to the common battery's set.

By the way, you can purchase an adapter XT60(M)-to-C14 (IEC 60230), which can be used for charge the battery at home by common charger for e-ATV or e-Bike.

The last important question is a valid charging of Li-Ion 36v battery.

The full level of charge for our 10S6P Li-Ion 36v battery is a 42 volts (10 x 4.2 volts), which is equivalent to three or lead gel batteries, which also charge up to 42 volts (3 x 14 volts).

So, our lithium battery can be charged by common lead-charger from a mini scooter, but it will happen quite slowly - up to 10 hours!

Because the native charger provides charging current less 1.5 amperes, which is needed for charge SLA batteries.

For lithium batteries with high quality cells are recommended charging current around 0.2C ~ 0.25C, fully charge time will 4 hours.

As is known, the rechargeable lithium battery offers lowest weighs and best charging time.


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