Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
4s Motorcycle Battery
#1
Building a small pack for an ATV that charges at 14.5v <1000mah. Some are building packs w/o a BMS which I am not keen on. Can a safe 4s really be safely used in this situation. I ordered BMS, but wanted to see what the trend is in the community.

Thanks again for all the help.
AA
Reply
#2
It depends on what bms you have ordered and how many amps you'll be pulling.
1xAA likes this post
Proceed with caution. Knowledge is Power! Literally! Cool 
Knowledge is Power; Absolute Knowledge is Absolutely Shocking!
Certified 18650 Cell Reclamation Technician

Please come join in general chit-chat and randomness at Discord Chat (channels: general, 3d-printing, linux&coding, 18650, humor, ...)
(this chat is not directly affiliated with SecondLifeStorage; VALID email req'd)
Reply
#3
I bought a 10a and a 20 for testing, but do I even need a BMS? I can;t imagine no, but some are doing this. Found one guy who put the balance cable on then removes for annual balance charge. lol
Reply
#4
Yes you need One. You also need to understand current. 10a bms wont start your atv.

Best is to do LiFePo4.. also note that just because its doable doesnt justify that its the right way. Me for instance Still run la in most of My vehicles as starter battery... Or LiFePo4. I dont have anyone with liion Smile
Neither less. I would never run a system. Without bms that doesnt do balanced charging and protection
1xAA likes this post
NOTE! My links supplied in this message may be affiliated with Ebay and by clicking on them you agree on the terms.
YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 100kWh LiFePo4 | 20kWh 14s 18650 |  66*260W Poly | ABB S3 and S5 Trip breakers
Upcoming: 14S 18650~30kWh
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)