Read the description very carefully. Yes, the entire description.
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These are DIY ONLY "imperfect" 10s4p lithium Battery Scooter packs (460Wh). Imperfect means they have one or more of the following known issues: Partial case, crushed and/or missing connectors, nicked wires, thermistor disconnected, etc (this isn't a complete list).
Available in 2 varieties (choose from dropdown menu):
- Imperfect with case
- Imperfect without case
They contain x40 Panasonic NCR18650BD cells. Great for Building 36v battery packs as they are testing at least 95% capacity. Packs should have ~90% usable cells.
This product is sold for DIY USE ONLY and is SOLD AS-IS. That means no refunds or exchanges. Caveat emptor.
To learn how to use these packs it's important that you carefully read the instructions down below.
Any voltage below 30v at the discharge port is an indication that the BMS is hibernation mode. The Internal BMS can be turned on by applying voltage to the charging port (smaller cable). The battery pack will remain in the "ON" state for as long as it has a voltage of 30v or above and without a load. Applying a load above 1A will cause the battery to shut 'OFF" after 5 seconds then remain off for 60 seconds, ON for 5 seconds, OFF for 60 seconds for an indefinite amount of cycles. Using this Arduino Controller connected to the blue cable will instruct the BMS to remain ON while under load. This activator dongle is recommended instead (includes Arduino) if you don't want to solder yourself.
Again, most of these battery packs are in hibernation mode, this means that even though the pack is resting at around 30v the output connector shows sometimes 1v to 15v. This means the MOSFETS in the BMS are off.
Typical Capacity: 3200mAh
Nominal Capcity: 3100mAh
Voltage nominal: 3.6V
Charge voltage cut-off: 4.2V
Discharging cut-off: 2.5V
Module Dimentions: 16"x 3"x1.75"
How to use battery:
Step 1: You have to charge the battery pack to 42v. Charge the battery using this new charger. (Or you can use any 10s charger like this, look for one with an XT90 male connector or you can swap whatever connector to the XT90: Charger on AMAZON. Here is a charger you can order with the XT90 Male connector on Aliexpress). Once charged, some packs will automatically turn on, if yours turns on you can skip Step 2. Others will require you to...
Step 2: Bridge the negative pins on both connectors together using a jumper cable. You can also apply 42v to the small charging port and it will take the battery out of hibernation, you will need this small charging connector. If you don’t have the small charging connector you will have to cut the original connector and solder in your own connector. XT90 connectors work great here.
Step 3: Use our ready-to-use Activating Dongle to prevent the battery pack from turning off when you apply a load above 1 Amp. If you decide to DIY it and solder in your own Arduino controller, you will need to get the male connectors since the scooter pack normally comes with female connectors attached.
To charge these batteries:
Charge the battery using this new charger.
For the following chargers you may need to add the XT connector yourself: 42v 2A charger to charge scooter batteries: https://amzn.to/2Ole3Ty / Quick Charge 36v 15A charger: https://amzn.to/3baODBg. Some packs may be at a voltage such that a normal charger will not recognize them, so they won't charge. This can be resolved by charging using a variable voltage power supply.
WATCH THIS VIDEO to learn how to wake these battery packs up:
This product is sold for DIY use only and is SOLD AS-IS. NO REFUNDS or exchanges.