- Mon Oct 19, 2020 6:21 pm
If you are still trying to make it work in Oct of 2020 here is what i have done after reading all the forums and posts online.
Tier ES400 is CAN Controlled. Maybe you already read this somewhere .Here is the news flash battery , motor even the acceleration is CAN controlled. Without the CAN Communication developing knowledge . its impossible to make them work.
First disconnect the main computer GPS box whatever you want to call.
1.Solution for using the onboard battery....
You have basically a dead battey in a locked compartment which you need to crack open. Once you are in,if you still want to use the same battery cut open the battery case carefully , the battey is potted so you can not get the pack out of the metal compartment without cutting it open. Then bypass the BMS by taking negative from BMS and positve from no 13+ve terminal. Keep all the wires connected so you can still use the BMS function for charging the battey. To charge the battey you do not need to communicate with a CAN message. Once you have a battey ready you can connect it back to the charging port.
2. Disconnect the controller
You need a new controller . this is the only thing you need along with a 54v charger.
connect the new controller with the existing motor cables 3 mains 5 hall sensors you can leave the thin white cable away .if your controller has 6 sensor cables go for it. battey connection can be done later . so you have a controller and battery ready.
3. get the cables from the handle 4break cables two on each side can be connected parallel, 3acceleration cables can be directly connected to 3 cables on the controller. getting the handle cables are a bit tricky since you need to take abunch of screws out .
all thats left is connecting the battery to the controller , You have a working scooter.
total investment -30ish euros for the controller from AliExpress . i bought a 1000watts one.you can also go for 500 but 1000 gives me around 28kms but the torque is pretty good.
14 eur for charger
The dashboard won't be working but hey you have a bulky scooter that can literally take you off-road. i know mine does. you can also get an external display for info along with your controller.
i know this is really a dumb way to hack the scooter. but at the end of the day if you have working scooter without anylimitations why not.