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by retepsnikrep
Sat Oct 06, 2012 7:02 pm
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 310334

Re: Old BMS Hardware Thread

Programming the pics is the easy part, you will need to do some googling to find the solution/ideas for that. :wink: Yes you could use breadboard, but best bet is make an adapter from pickit 2 to the zif socket gizmo. Check the asian programmer for breaks in the grey ribbon cable that's a common iss...
by retepsnikrep
Sat Oct 06, 2012 11:05 am
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 310334

Re: Old BMS Hardware Thread

We are still developing it. I have two versions running for several years without issue. One based on original picaxe chips has run for four years One based on plain pic chips has run for over two years I find I have a day free on Wednesday 17th October when i could come up if reqd. Discuss it with ...
by retepsnikrep
Fri Oct 05, 2012 9:20 pm
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 310334

Re: Old BMS Hardware Thread

The slave board should not get hot.

The 2w load resistors will get hot if a cell is bypassing current.

I don't think I have any spare SV2000 chips.

Please post some decent resolution pics of the BMS setup and battery connections etc
by retepsnikrep
Fri Oct 05, 2012 6:58 am
Forum: BMS thread
Topic: LTC6802 based 12 cell slave.
Replies: 75
Views: 99835

Re: LTC6802 based 12 cell slave.

Code looks interesting, didn't spot any glaring issues. 8)
I haven't used SPI
by retepsnikrep
Fri Sep 28, 2012 6:18 pm
Forum: BMS thread
Topic: LTC6802 based 12 cell slave.
Replies: 75
Views: 99835

Re: LTC6802 based 12 cell slave.

Good point, i was just wondering who would be the first to spot that!! LOL
by retepsnikrep
Thu Sep 27, 2012 2:58 pm
Forum: BMS thread
Topic: 14 Cell 12F1822 Slave Board for A123 28S3P Packs
Replies: 7
Views: 21044

Re: 14 Cell 12F1822 Slave Board for A123 28S3P Packs

Sent my files to China as well the other day comming back on 9th October. My board is same size shape and connector position as OEM BMS and fits into OEM bms position on cell packs and plugs straight into battery blocks using same elusive and expensive connector! First slave also monitors the two NT...
by retepsnikrep
Thu Sep 27, 2012 2:47 pm
Forum: BMS thread
Topic: LTC6802 based 12 cell slave.
Replies: 75
Views: 99835

Re: LTC6802 based 12 cell slave.

Looks good. I should have used usb connector on my boards :roll:

My A123 boards won't be sent until 9th October :(
by retepsnikrep
Fri Sep 21, 2012 11:57 am
Forum: BMS thread
Topic: Lithium Battery Monitor 48 cell
Replies: 57
Views: 82889

Re: Lithium Battery Monitor 48 cell

That does look nice.

Does it balance as well? I can't see any power resistors.
by retepsnikrep
Wed Sep 19, 2012 3:14 am
Forum: BMS thread
Topic: LTC6802 based 12 cell slave.
Replies: 75
Views: 99835

Re: LTC6802 based 12 cell slave.

Lots of progress well done.
by retepsnikrep
Fri Sep 14, 2012 11:19 am
Forum: BMS thread
Topic: 14 Cell 12F1822 Slave Board for A123 28S3P Packs
Replies: 7
Views: 21044

Re: 14 Cell 12F1822 Slave Board for A123 28S3P Packs

For this project I'm going for 14 slaves it's for a specific purpose. But point taken.

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