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  1. General_Lee

    BMS fisrt connection, cables order question

    Hi folks, about BMS, is it necessary to respect a specific order to connect a cables when you connect it for the first time? or do not matter? Exemple, my batterys pack is ready and I need to solder or connect all cables from the BMS. Wath is the first cables to connect? Thanks a lot... :bigthumb:
  2. General_Lee

    Inverter with my Solar system make a noise! why?

    Hi guys, I bought a PowerBright ML2300-24 inverter, I tested it and when I plug a devices the inverter make a inside noise. Is it normal? this noise is not good to ear! I plug a PC computer on it and the power supply on this PC make a noise to. What is the problem? Thanks.
  3. General_Lee

    Could you identify this connector? and SGND mean?

    Hi folks, I have this power Supply and I need to know what kind is this connector type? He is a little bit smaller than PCI-E PC connector. I read (8-pong) is this right? Other thing, what mean SGND signal? if I build a barrel connector to replace the original power supply connector, can I...
  4. General_Lee

    Possible mosfet burned question?

    Hi guys, how can I check if the mosfets is ok? can I test them in place? A controller like that, is it possible to have one or some mosfets burned and the controller still working? or impossible?
  5. General_Lee

    Calculate how many amp total I will have with 1s board I nee

    Hi folks, I have a 72v 24s (15amp each cells) LifeP04 pack with 60a BMS full board. If for exemple I remove the full BMS board and replace it with 1s little board 2amp for each cells, in the total amp delivery output battery pack I will have 48a ? I'm right? :?:
  6. General_Lee

    Mix or addon more cells with different amperage

    Hi folks, I already build a 24v pack (5P 7S), with Samsung 1865030A (3000). I need more amperage, can addition in each parallel branch more cells with lower amperage like (2100) without problem :?: Thanks.
  7. General_Lee

    LifeP04 voltage drop after fully charged...

    Hi Guys, I have two battery pack Prismatic LiFeP04 (15ah 24s) in parallel = 30ah 76.8 nominal. I use Cycle Satiator charger set to reach 86volt for charging my pack. When the pack is full, the charger keep the pack fully charged. When I unplug the charger, the voltage begin to drop slowly until...
  8. General_Lee

    BesTech Power CRAP! ... parts needed?

    Hi guys, I bought a BMS from this crappy (BesTech Power) and I received bad BMS. This bad company not respect her warranty. :oops: I found the problem about it, it have four transistor blown. Can you indicate to me where I can find it? Is written on it AFBV14, I found anything about it...
  9. General_Lee

    Why my controller run colder with Li-ion than SLA battery?

    Guys, In my E-scooter, when I used the SLA battery, after a great ride, my controller come warm up until hot. With my new LifePO4 battery (30amp) after the same ride, my controller stay colder. Why? with the LiFePO4 battery they passe more amp than the SLA... :?
  10. General_Lee

    BMS balance part come hot when charging and after

    Hi guys, I built a new battery pack and I double check my wires to BMS, all is ok. When I start charging (5 amp) the BMS come hot, balance side I think. When I plugged the BMS for the first time, the total pack it was 48v, the BMS it not be hot, but during the charge it come hot and after...
  11. General_Lee

    Seller said, not use BMS with mix brand or old battery!

    Hi guys, I will build my first 48v pack with recycled 18650 battery. (13s 8p) I would like put a BMS like here: http://www.ebay.ca/itm/48V-54-6V-13S-45A-Lithium-ion-Li-ion-Li-Po-LiPo-Polymer-Battery-BMS-PCB-System-/221740200277?hash=item33a0bef155:g:dywAAOxy1klRa8a0 But this seller not...
  12. General_Lee

    Nissan Leaf battery cells explanation ...

    Hi folks, the battery cells spec for Nissan Leaf explain like that: Rated capacity (0.3C) 33.1 Ah Average voltage 3.8 V -What is 0.3c mean? usually is not 1C the maximum charge capacity? -Other thing, If the Leaf as 4 cells in each module, 2 in-series pairs in parallel, that mean 66 amp...
  13. General_Lee

    Cycle Analyst equivalent for Nissan Leaf

    Hi folks, I need to have a equivalent from Cycle Analyst for my new Leaf. Are there a similar unit to which exist? Thanks! :)
  14. General_Lee

    Can bypass BMS for charging and keep it for discharging?

    Hi guys, I have Samsung cells 4.3v 20S8P (86V total pack) but the BMS stop the charge at 84v. If I bypass BMS for charging to rise my pack at 86v is it ok for the cells (stay balanced)? and BMS not run faulty if it see 86v, not 84v? For sure I keep BMS when I will run my Bike (Discharging).
  15. General_Lee

    72v 20ah SLA pack vs Samsung SDI 72v 24ah pack range!

    Hi all, I will change my batteries configuration and I'm curious to know your opinion about this. To make short, - Originaly I have six 12v 20ah batteries SLA (72v nominal) - I desire to change it with Lithium Samsung SDI cell 20S8P. (to give at around 72v 24ah nominal) If I run my bike with...
  16. General_Lee

    Best or good place to buy LifePo4 batteries in Canada?

    Hi all, I will buy a batteries maybe a 72V pack or six 12v LifePo4 batteries. Where is the best place in Canada? Thanks
  17. General_Lee

    Wiring diagram for Lipo balance connector with BMS

    Hi folks, I'm interested to use a BMS with Lipo Battery packs. Often the BMS diagrams they are for single cells but if you have a Lipo 6s pack with already balance plug, how you connect it with BMS :?:
  18. General_Lee

    Can I use 120 degrees controller with 60 degrees motor?

    Hi folks, like the title said, can I use or modify a 120 degrees controller to use with a 60 motor :?: I received today my new controller but is it build for 120, I need one for 60. Thanks a lot! :)
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