Search found 859 matches
- Thu Jul 24, 2008 12:21 pm
- Forum: BMS thread
- Topic: Old BMS General Thread
- Replies: 658
- Views: 1257740
Re: Charger Control
My thoughts about charger control are these, should I pull the charger voltage up or pull it down :? By connecting the leads to the top two connections on the pot instead of the bottom two then the charger can be pulled up to the correct (max) voltage when the opto is active instead of being pulled...
- Thu Jun 26, 2008 11:44 am
- Forum: All things battery related
- Topic: 12v Leisure battery charger
- Replies: 1
- Views: 8736
- Thu Jun 26, 2008 9:23 am
- Forum: BMS thread
- Topic: Old BMS General Thread
- Replies: 658
- Views: 1257740
The master board plan sounds pretty comprehensive. 8) In my case I am splitting my pack into 2 packs, so it would be good to be able to read pack temp on both. I suspect that this may be the case for a number of people. Maybe room in the design for extra optional temp sensors, even if they are not i...
- Thu Jun 26, 2008 9:00 am
- Forum: All things battery related
- Topic: Charging Lead Acid with a Zivan NG3
- Replies: 2
- Views: 7770
Re: Charging Lead Acid with a Zivan NG3
Hi guys, i have a couple of questions... 1. Can I charge from 40% DOD with no problems? Should be fine and lengthen battery life due to shallow discharges. I plug mine in whenever possible even if it was only a couple of miles drive. 2. Is it 'easy' to convert my charger for AGM batteies? Many than...
- Wed Jun 25, 2008 11:16 am
- Forum: BMS thread
- Topic: Old BMS General Thread
- Replies: 658
- Views: 1257740
I have ordered Hi-power 100ah cells, I think they will fit your boards. For the master board I would suggest, among other features, a input for temp switches. A single input could handle any number of temp switches connected in parallel. Switches that tripped at 60 degrees C. would provide a safety ...
- Wed Jun 25, 2008 9:32 am
- Forum: BMS thread
- Topic: Old BMS General Thread
- Replies: 658
- Views: 1257740
Quick and cheap BMS
I like were you are going with this design Peter, simpler is a good direction. 8) Can't help you out on the PCB layout, wouldn't know were to start but if you get ready to have some made please put me down for 24 blank PCBs as well. I would like to try it out on my little Fiat 126, more testing can ...
- Wed Jun 18, 2008 12:47 pm
- Forum: BMS thread
- Topic: Old BMS General Thread
- Replies: 658
- Views: 1257740
Re: BMS Design
I would like to suggest a couple more variables in Peter's code, I will list my changes in bold . I haven't done any programming in years and never done it professionally so there may be mistakes, but hopefully you will see were I am going with this. `Battery Management System Slave Module `Based on...
- Tue Jun 17, 2008 3:02 pm
- Forum: All things battery related
- Topic: what do i need to convert my car to electric
- Replies: 18
- Views: 34786
- Tue Jun 17, 2008 10:41 am
- Forum: All things battery related
- Topic: what do i need to convert my car to electric
- Replies: 18
- Views: 34786
- Fri Jun 13, 2008 11:45 am
- Forum: BMS thread
- Topic: Old BMS General Thread
- Replies: 658
- Views: 1257740
Re: BMS Design
The pic has a wide operating voltage from 2-5.5v so covers virtually all the various types of Li-Ion chemistry. Last night I was starting to read through the Picaxe manual and it stated a operating voltage of 3-5.5v and min 4.5 volts for programming the chip. If this is the case that could be a pro...