I'd be wary of a cheap BMS even *with* a wiring diagram. Without one?
Contact the seller.
On 6/23/2020 7:39 PM, Lawrence Rhodes via EV wrote:
The BMS and Charger came the other day way earlier than promised. Both packages came
from an address no more than 10 miles from my house....maybe there are stockpiles in
the US? But why would they say from China using speed pack. Any way no instructions
came with the package. The BMS looks professionally manufactured. Has a 5 and 20 pin
connector. It is the size of a small smart phone and very heavy. I have no idea how to
hook up the negative. The diagram(on ebay) assumes a lot of knowledge I don't have. I
am not even sure I can safely start this project.
https://www.ebay.com/itm/20S-60V-BMS-30A-40A-50A-60A-Lifepo4-Battery-BMS-W-Balance-Waterproof-Protection/113793800015?ssPageName=STRK%3AMEBIDX%3AIT&var=413965228886&_trksid=p2057872.m2749.l2649
If this is a common BMS with maybe a video somewhere that might help me. Maybe someone
here has used this model. About all I know is the 20 pins go on each parallel
connection of which there will be 20. The P will be two. Plenty for a small battery for
a bicycle. But documentation in the form of diagrams is lacking. But for the money if
I can figure it out not bad. Lawrence Rhodes
On Wednesday, June 10, 2020, 7:42:45 PM PDT, Lawrence Rhodes
<primobass...@sbcglobal.net> wrote:
Below is my order and a few bucks for buyer protection. This will be an experiment and learning experience. Lawrence Rhodes
Order details
Sales order
Sold by zhan-lingj ( 383 ) Order number: ???????????Processed by PayPal
Estimated delivery Monday, Jun 29, 2020 - Friday, Aug 21,2020
60V/73V 5A Charger for 60V (20S ) LiFePO4 BatteryPack/E-BIKE.AC110V 73V OUTPUT
Item price USD25.95
Quantity 1
Item number 173860920788
Shipping service EconomyShipping from outside US
Sales order
Sold by elec-module58 ( 14539 ) Order number: ?????????Processed by PayPal
Estimated delivery Monday, Jun 29, 2020 - Wednesday, Jul 22,2020
20S 60V 60A Lifepo4 Battery BMS W/Balance WaterproofProtection
Item price USD36.98
Quantity 1
Item number 113793800015
Shipping service StandardSpeedPAK from China/Hong Kong/Taiwan
Sales order
Sold by squaretradeus ( 553444 ) Order number:24-05211-07170 Processed by PayPal
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