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Ahhh, Ok, I see, I'll change that.... I wish there was a way to change ma. to Amps.. so easy to confuse me..

was charging at 10 amps, then 5 amps, it does it eitherway...

BUMP..... help...

Hey, all, I'm back... Can someone look at my settings, and tell me if anything might be causing the BMS to cycle while charging.. It charges, then drops out, then it resumes charging. it does this constantly.. I can't figure out why.. suggestions..

I got it figured out.. Yay! These BMS's are rebranded.. Took much time to find solution. It's working well, i just have to tweak the settings. I has to connect pins 14 +15 together to set it for 14s. Case closed...

I have a few JBD-SP15S020 BMS's They came with batteries i bought,. But no instructions. These BMS's are actually 15s BMS's But wired for 12s. From some place called RJXZS BMS. I discovered they were 15s by opening the cover. There is spaces open for more balance leads. but not present. And...

Hi all, I have one of these AIMS LCD remote displays. (REMOTELF) There's a button to the left of the display, turns the display off to save power.. But, How to i change it back to where the display stays on ? I've tried pressing it for a second, 2 seconds, double tapping..etc, I can't find any...

I think finally I got the info i need.. I'll try it this weekend. Yes, but that won't be an issue I'm not sure on that, as i have not powered them up yet. I still need to download the app as well. Yes, I have those as well.. 6 are in use on my other BMW battery Bank Gotchya.... Stay tuned...

Heres a few pictures The jumpers you see correspond to missing wires on the balance cable.. I can add in wires, but need to know which spots to remove the solder. The board is a 15s, but set up as 12s currently.

Hi.. do you happen to have the diagram for that 15s board ? the ones i got have RJXZS brand..but the board is a JBD-SP15S020 but it's set up for a 12s, and i'd like to convert it to a 14s... the boards balance connector has been soldered to be a 12s, so I'm looking for a diagram in hopes to...

No, it's just 1 balance connector. not 2 parts. I'm learning that this is a JBD-sp15s020 board.. I just gotta find the selectable options for it.. been looking for a while now..Hopefully i find out some info soon.

Anyone ever modify BMS's I have acquired 8 12s BMS's They are RJXZS Brand. I am hoping they can be modified. The circuit board actually says 15s, but some of the battery leads have been jumpered to make it 12s. I'm wondering if i could just unsolder the jumpers.. All the circuitry looks to be...

Well, From my experience, the inverter will have a constant draw until it has LVD. of course the amperage would increase if you went below that rate. I bought one of those Chinesium watt hour column meters, But it's not very accurate and hard to claibrate. I'm open to something easier and more...

Does anyone know of an inverter that has input voltage selection ? like 12v up to 48v selection? I'm looking for such an animal for using to load test batteries for capacity, as they maintain constant during discharge. Other devices ( dummy loads or such) current drops as voltage drops. and...

Not finished with it yet,, but i can post what i've done so far.. ( will post in the next day or so )

BUMP !

Well, If you could do anything with SLA,, What do they use ? I'm sure not just battery acid..

@crazydane >> If None has told you yet... I built a controller for an old satellite dish.. the motor is 24v, but will work fine with 12v.. just slower, which will be great for the project.. Look at http://www.redrok.com/electron.htm#led3x they have these in ready built or kit form.. easy and...

Since I had adjusted voltage the other day, the batteries haven't been getting hot, but I'm sure there's still some damage to them.. The current is the same on both sets, about 1/2 volt difference in the sets.. As long as they are by cooking I'll just let them go.. I've never heard anyone...

Sorry bout late reply..

I'll get back to you on that...have to get you pictures.. But battery bank is 4x 100AH SLA 2s2p.

It does from time to time,, but i have the voltage set to the same as float voltage.. so it can't do that...

I'm working on another battery project. I had acquired for cheap 8x 12s BMW batteries, I think they came from an I3? Anyway I need 14s packs to match my other BMW Batteries ( 14s system ) I've decided to disassemble 1 pack to gain 6x 2s packs, then add them to the 12s packs I have, then i'd have...

I have a 24v system 2P2S 4x 100AH SLA batteries, About 3 yrs old. I was routine checking things, and I noticed 1st that solar kw for the day was getting higher than usual. I then checked my batteries, and I noticed that 1 pair was hot ( over 100F ) I checked voltages and they were normal, about...

What VW are those batteries out of ? I recently got some from a 2013 Jetta.. Got em cheap.. but only rated for 5A and 1110Wh. I plan to reconfig for either 24 or 48v use. How did you get your cells separated ? looks neat.

Customer brought me one of these Duracell powerblocks. The inverter part is dead, everything else works ok. Is there a fuse in the Inverter? I do see a 200A fuse for the external battery, but i don't see one for the Inverter. Anyone work with one of these yet ? I'd hate to take it all apart...

Ya, ok,, was just a thought, I'll see how it does in my real world test.. I'll monitor the relay when it switches, see if there's any excessive arcing between contacts.

I see your point about transferring to mains when inverter shuts down.. but what about when it returns to inverter mode? for example.. if my fridge or some other inductive load switches, will that put an undue buck ? I might be thinking too much into this.. I just done wanna blow up my inverter...

well, I Decided to build my own transfer switch box.. It's starting to look quite well. it'll be a portable box for now (testing). I found a 30A DPDT relay. I'll be using this so that both inputs will be isolated, except for the grounds being shared. I'll have 2 individual 10A circuit breakers...

I figured it out,, the solar panel is actually bad.. low voltage under load.. reads 5v when it should be at least 17VOC reads 5.6 with 1 watt load..and it's a 10 W panel.. I tried another panel, only 5W and it worked.. I ordered the proper panel for the unit..

Does anyone know what the minimum input (panel size) is for this CC to operate ? I'm Starting to think I might have a bad solar panel or it's too small. It is a small 12v 1/2amp panel. The panel measures about 17VOC But goes down to about the voltage of the battery when connected to the CC. The...

I could make my own relay type of transfer switch, I'm just worried about phase bucking ( switching loads out of phase) or such. would 2 SPST ( 1 NC and the other NO? ) be better than a single DPDT ?

Do these transfer switcher have Zero crossing circuitry protections ? All the ones I'm seeing are just transfer relays and maybe a delay. I'm looking more zero crossing fast switchover, Kinda like the Battery backup UPS's or Inverters. Am I asking / hoping for too much ???

any particular model ?