there are all kind of thermal fuses with difrent ratings. Some reset, some are one time use.
One time use is better for this application as you don't want charging to restart once a cell has gotten that hot.
This works for me as all my charge sources (alternator, SCC, shore charger) are...
I have a thermal fuse taped on to each cell (4S , 12 volt) which will stop charging in the event a cell goes over 65C. It's independent of the BMS, so a charge cut-off of last resort. Not intended to protect the cells, intended to avoid a fire or off gassing.
Maybe try this 48 Volt Victron BatteryProtect?
https://www.victronenergy.com/upload/documents/Datasheet-Battery-Protect-48-V-100-A-EN.pdf
But i would put it on the inverter's on/off remote input (and not the DC load side) if your inverter is set up this way...
The DSSR20 are optional and are primarily intended to save $ on large solar charge controllers.
I agree it's not the optimal solution but perhaps a frugal one?
I have a small solar set up and run my electrodacus with a Victron MPPT. Works great in this application. BMS disables the MPPT via...
Old thread but I thought I would post here for anyone considering Frey cells.
My Frey representative reached out recently and I took the opportunity to ask about the relative high IR of the Frey cells (both AC 1KH & on an a voltage drop basis).
I provided a link to this forum thread, so they...
Hi Hwse,
sorry i know this is an old thread.
I also have an argofet to separate a AGM start battery and a LFP bank (and to allow for a 'dump load' should the LFP disconnect).
I note you put your sense wire on the input side of the Argofet. I put mine on postive terminal of the LFP.
Just...
Soakupthesun,
im not the best person to explain this to you .. but putting cells in 3P, 4S is not a straight forward exercise and requires very well matched cells and very low resistance btw cells in parallel so that they stay together in SOC.
In general it's recommended that cells in...
150 to 200 mili amps of passive balancing should be fine for a 300ah pack if you charge to full on a regular basis....
I have run 280ah, 4S 12v eve for years like this with no trouble. I did top balance initially.
OP,
you cannot wire your pack like that with only 1 BMS.
you can't have a bms's balance wire connected to 3 cells that are not in parallel with each other.
You either need 3 BMSs or you need to put 3 cells in paralle first, and then in serises with the other 3-cell packs.
As wired you...
Mine arrived from the Hanzor store.
Installed and commissioned & so far no issues. But I have not had to enough time really tell yet re overall performance.
I believe these BMSs run internally on 24volts and there was an issues for a while (2022) with the built-in boost/buck converter for...
No experience with this brand but watched the video and was impressed (for the price). These look amazing for $180. Can't believe these 100 ah batteries have got that cheap. It's cheaper than building a DIY battery.
I have a remote cabin with a crap lead acid battey and 30 watt panel...
Better I. think you set charge current to any anywhere btw 50 and 1 amp. So that way you can dail-in the max output of your alternator during idle (without overheating).
Why Victron did not add this feature years ago to the DC-DC line is a mystery...