Thank you all for your reply.
I just did the parasitic draw and it is .35amp So for about a month 24 hours a day it drawn a LOT of amps and like you wrote, the BMS just did not add up htat really small charge.
I know what I have to do now. If I have to put my rv in the garage for a long...
I recently entered my rv in the garage. He's been there for about a month. So it is not connected to the shore and for recharging with the sun ... well it obviously does not work.
Yesterday I entered the rv and as I usually do, I connect to my BMS Daly to see the battery status. It is 89% and...
The cell is at 3.29 (or something like that).
Is it still good ? this is really THE question.
My seller just wrote me 'not to use it'. So is it because there are risks ? or just because it is no good.
I will wait to see what experts here say about it.
I did a bad thing !
I started to top balance my cells for a second battery BUT I adjust my power supply to 4.60 instead of 3.60.
Now the first cell is not reusable (I think) so I ordered a new cell from my Alibaba seller BUT she is out of 150ah.
My question, can I put a different cell...
Yes when I saw that I made an error of voltage I put them in series and applied a load (the voltage was more then 15volts). After 5 or 6 minutes of load, the voltage was under 13.5 volts. So I figured that the expansion of the cell was stopped.
I removed the charge and let it sit in series for...
I received 4 new cells of 150ah LiFePO4, and like i did with my other pack I charged the whole thing close to 14 volts. Then I top balanced each cell.
But I did a stupid thing, I put my charger at 4.60 instead of 3.60 volts. When I saw my mistake the cell was beginning to 'inflate' so I stopped...
I bought the LiFePO4 280ah battery from one seller on Alibaba and with that I bought a 120amps 4S Daly BMS.
These are installed in my RV and I used to have lead battery (4- 6 volts X235amps) and I was able to use my microwave.
Now with the 120 amps BMS...the BMS cut off the battery...silly...
I also have a question about 'adding a second' battery.
I already have a 280ah with a 4S BMS.
I bought a 150ah with another 4S BMS.
I did not really think about some possibles problems !!! I tought that each BMS would do their job.
So is there in your opinion some problems if these...
Can you post a picture of the 'key' ... I am having a problem with my BMS. From the + of the battery and the blue wire of the BMS I have 14.5 volts. But between the + of the battery and the black wire of the BMS I only have 10.8 volts. Looks like the BMS is holding some voltage :)
That is a new...
I am reading a lot to get all the information I need to prepare the heating box for my batteries. So thanks for sharingyour knowledge.
From what I am reading, the almost perfect watts per inch would be around .6w/inch !
Does it seams right to you ?
I am modifying my RV battery to use LiFePO4. For now I am waiting from alibaba on 4 3.2volts 280ah battery and a BMS 4S 150a.
- next year I will add 4 more battery to my system and want to keep it 12vdc. So I have found here on the forum that I can use the same BMS 4S with 8...