Puredrive Battery

Thanks. What other brand are you going for?

Well don’t I now have to join the merry band now. Only took delivery of additional puredrive battery on Wednesday. As of yesterday (as that’s when I noticed) BattName-fail and No-Battery earlier. And the simple tricks didn’t work.

mail in with supplier tonight, any tips also appreciated!

would have thought you would no bother. EV charges at 7kwh with no issues.

@Murt2 Yep, came direct from installer who is a well know supplier on here from the north.

in fairness they came out the next morning (thankfully we’re nearby) checked everything, repositioned the units, checked cabling. In the end Puredrive confirmed an issue with recent batch. Installer changed Bat Name to LG Chem and got it back up and working (but it’s not perfect)

Puredrive releasing updated firmware this week which they will install (direct Ethernet connection required) I’d do it myself, however, to insure the warranty I’m just going to let them be on point for it. Pretty frustrating.

I’ll be interested to see how that goes .. My installer said the software update didn’t work as they were given it last week .. Maybe they are issuing another one.

Hi. Newbie here. Had a Solis/Puredrive II setup installed a couple of weeks ago and everything was great until Monday, when the batteries (x2 so 10kWh) stopped discharging below 80%. Since then they charge ok from solar but when the SOC drops to 80% we start drawing from the grid. Couple of screenshots attached, one of which shows that the batteries discharged to 10% the evening before but did not charge until the early hours of the following morning, when it looks like things started to go awry.

I'm thinking that the inverter has lost control of the batteries to some extent because they had been sitting at 10% for a few hours, so it may be worth power cycling them, but I don't know the correct way of doing that. Is it a simple case of switching off and on again on the switch on the battery, and if so is it important if it is master first or slave first?

How do you know you're not getting the full range? Once there is communication at all, it's the batteries which tell the inverter what their capacity is, and how much charge is left in them, not the other way around.

You need to go into advanced settings, select no battery. Then switch off both Puredrive batteries, there's a button on the top of them. Turn them back on. Select LG Chem again. Go into voltage settings and set undervolt to 44V. At the bottom of advanced settings select battery wakeup. I have the same Puredrive Firmware issue you have, the battery is working perfectly.

You likely have another 'installer' who doesn't understand the equipment they're installing.

Let’s see what happens!

And stopped at 80% again last night🫠

🤬

The default over discharge is 80%, for some reason. I had to change mine in the Solis advance menu

Go into advanced settings and check it, if it's set @80% set it to the level you need. I have mine set @23% so enough left for a power cut. Just set the Force Charge a few % below the Over Discharge you set. It is warrantied to about 10% I think.

Lack of sleep, 😂

Sorry to hear that. Go into advanced settings, set the over discharge charge to 10% and set the over discharge charge rate to 100Amps. Check the slave address is set to 01. Also, is it possible one of your batteries is flat, likely the master one? If it's not charging and drops to 20%, it will stop the other one discharging as well. 80% seems very low at 20.30 on a two battery system. For context, I was at that at 80% at 20.30 with one battery. Do you only see one reading in the capacity read, or is there another? Sometimes it will say 80%, but every now and then there's one much lower?

BTW, are you in self use mode?