Recent content by maydayone

Thanks, so when your battery gets to 14.2V during charging, what are the voltages and delta on your individual cells then?

Well, you're right. I might seem fixed on this but to me it's quite simple . I set it up as per instructions (14.4v) and it doesn't not work as advertised. The battery cuts out even as low as 13.8V, an last time I spoke with Sterling they told me not to lower it anymore than 14.2V - the new...

What is your absorption voltage, and what's your highest cell when you hit the absorption voltage ?

No, if it's not reporting any incoming current, which it isn't below 5A on this battery (2A on the previous) then it's not balancing

The battery is in the campervan so it's charged with solar, victron motto, 30A, but give the weather it's usually below 10A. So when the cell started running away(above 3.4V) i lowered current to 2A to give time to the BMS to balance. I couldn't lowered the balance start voltage much more...

Ok so the Daily BMS has a icon which comes green when balancing takes place. The way the BMS is set on this battery is that it does not report any incoming or outgoing current if it's below 5A ( on the first battery it was 2 A). Simply put if you're charging or discharging battery with less than...

The BMS I have balances with 35mA, how long would that take to balance 120ah cell? A LONG time! Apart from the fact that when the runner cell hits the balance start voltage (3.5V now but i tried with as low as 3.35V), then it only takes maybe couple of minutes before it gets to 3.75V. So 2...

You can get the cells cheaper from china but you have yo wait like 2 months. There are UK based companies who buy them test them and sell with a next day delivery, that's why you pay extra. How much would you expect for a EVE 280ah cell?

Yep, the battery is going back to where it came from - no doubt about it. I'm getting 280ah cells and a BMS and building it myself - something i had hoped I can save some time on by buying ready made unit. Where I live i can get 4 x 280ah cells for about 800 pounds plus about 150 for a BMS. If...

Yeah and as few people on this forum suggested if on every single charging cycle the BMS cuts in(this is a safety feature not a "normal" way of operation) , it might eventually fail, and that is not good.

The other thing which i wonder is how many people who buy a commercial battery actually check if it works as advertised? Wouldn't most people just connect it and if the light comes on then they're happy?

Yeah, you would think that they will test the replacement thoroughly before sending out. The first battery i had was bought from a supplier, not Sterling directly, was actually better than the second one which was swapped directly by Sterling. Two batteries with one cell off - makes you think...

I agree almost 0.4V delta is huge! You could balance cells this way or in many other ways but for that you need an access to the cells. Since this is a sealed unit there is not much I can do -that 35mA of balancing from Daly BMS won't do much in this century. This should have been done at the...

Well, i got the battery replaced, the second has exactly the same issue plus it came in with misconfigured BMS ( completely wrong max discharge and charge limits), not detecting anything going in or out of the battery if it's less than 5A . As it is right now i have one runner cell which hits...

I got the battery replaced and now it's not reading anything below 5A... Basically there is a setting in the BMS (don't remember the exact name) where you can set it(don't know what th minimum value is though), but you can't do it over the Bluetooth, you need to connect the PC, so if you have a...