Skinnwalk3r said:
this is the battery at 48v and 38.8ah https://webike.en.alibaba.com/product/60617012927-804496369/48V_29A_lithium_battery_pack_with_BMS_inside_Panasonic_battery_cell_suitable_for_enduro_electric_bike.html?spm=a2700.icbuShop.41413.9.11f56005Hfq63H and connector is the andersson to connect battery to controller
everything on that page says that's only a 29ah battery, so if you were told it's a 38.8ah, you've been cheated.
not only that, but the specs don't actually even specify that you get 29ah, it has a wide range of possible capacity of "21 - 30Ah", which indicates it is probably made of junk cells, possibly evne used ones recycled from dead batteries, so that they don't even know how much capacity each cell really has. (i doubt it actually has the panasonic 29pf cells it claims to, that they're genuine even if marked as such) so you could have a battery that's barely half of what you were told, if its' at the low end of that range.
it also claims it has a case that lets you bolt it onto the eeb frame, but it's just a heatshrink-encased block, with no casing at all, and certainly no mounting brackets.
it's only capable of about 20a continous, probably twice that for a short peak. so it's not suitable for running your 3000w system, which is going to be able to demand three times what that battery is capable of handling.
it also claims the battery is only 5kg in one place, and 10kg in another. thats' much too large a discrepancy to be from packaging for shipping.
website says said:
48V 29A lithium battery pack with BMS inside Panasonic battery cell suitable for enduro electric bike
Quick Details
Type:
Lithium Battery
Voltage:
48v
Capacity:
21 - 30Ah
Application:
Pack Battery
Nominal Capacity (Ah):
29Ah
Nominal Voltage (V):
48 Volts
Cycle life:
500 Cycles
Certification:
CE/ROSH/MSDS/UN38.3
Product name:
48V Electric Bike Battery
Warranty:
12 Months
Weight:
5kg
Battery type:
Lithium-ion 18650
Inside cell:
Panasonic battery cell 29PF
<snip>
Product Description
48V 29A lithium battery pack with BMS inside Panasonic battery cell suitable for enduro electric bike:
Pack battery is suitable to install in the triangle of the mountain bike frame, there is battery holder which will be installed on the frame by screws and holes. Battery is easy for release and get the recharge. it is Panasonic 18650 cell inside this type of the battery case.
The battery is suitable for any kind of the bikes, and our enduro e-bike use the battery case to load the battery and put inside the frame, it is heavy but long distance support.
1. Standard charge current: ;
2. Max Charge current: 10A;
3. Empty discharge voltage: 40V;
4. Max continuous current: 20A;
5. Recycle times: 500 cycles;
6. Suitable motor power: 350W 500W 1000W;
7. Weight: 10kgs;
8. Packing Size: 40*28*28cm.
lcd i believe is a tft-750c and that came with the controller 3000w48v and modellnumber is LL4860-UART
and screen picture
https://imgur.com/a/6WOkzqW
Apparently it also says it is a smart sinewave controller
a search does not find any info on "ll4860" with or without the uart portion, so we still need a link to the sales pages for these; they should have some info on how they should be hooked up, evne if it's badly translated into english, we may still be able to decipher it and help you make sure it's correclty wired.
if the pages don't have any info, we'll need to you provide any wiring information that the seller(s) did provide you, if any, as well as good careful pictures of the entire wire bundle on each part of the kit showing the connectors, and wires on each connector, so we can help you make sure the wires are correctly connected.
it may be something very simple, rather than a defective part.