Search found 6 matches

by hardym
Tue Jun 29, 2010 4:07 pm
Forum: All things battery related
Topic: Melted battery terminal!!!!
Replies: 12
Views: 30074

Re: Melted battery terminal!!!!

I had several of these blowouts on my Trojans T125 6v 240AH FLA batteries. The good news about Trojans is that they can put out 1000A. The bad news is that the terminals heat up pretty bad at 1000A even with good connections. (My new Costco GC-2's dont put out nearly the current, so there's less of ...
by hardym
Fri May 21, 2010 2:58 pm
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 1043152

Re: BMS Hardware

I'd like to share some experience with using a current sensor with a PIC ADC in an EV. I was using the Tamuara L06P400S05 (available thru digikey and mouser) which is similar to the one referenced earlier in this thread (http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&am...
by hardym
Mon May 03, 2010 5:36 pm
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 1043152

Re: BMS Hardware

Great work on this open source project, this seems like a nice solution I read thru the last year or so of messages, and didn’t find a succinct description of how the communications works, so I would like to summarize how I think the slaves talk to the master and then offer a concern, based on simil...
by hardym
Sat Aug 15, 2009 2:46 am
Forum: All things battery related
Topic: EV managment module
Replies: 37
Views: 78278

More BMS Options

There is a new off-the-shelf Lithium BMS with a centralized architecture, with individual cell monitoring, high cell charge cutoff, low cell warning, temperature monitoiring. It also has a nice small display, and is fully configurable. Current monitor and data logging option too, so a complete packa...
by hardym
Sun Jul 06, 2008 6:27 pm
Forum: All things battery related
Topic: Surplus Lithium Ion batteries
Replies: 2
Views: 16046

Battery pack pictures

More pictures of the battery pack. It has a PIC16C72A MAX 1414C A/d Ti bq2060A Power Management IC Lots of TPB9013 FETs Cells are not the ICR 18650 as advertized, but are a korean make with F1FHH2 on the the label. http://www.convertthefuture.com/images/DSC01949.JPG http://www.convertthefuture.com/i...
by hardym
Tue Jun 17, 2008 2:58 pm
Forum: BMS thread
Topic: Old BMS General Thread
Replies: 658
Views: 1263500

Maxim 11068

GregsGarage posted a link to some information about the upcoming Maxim 11068 multi-cell battery controller. I requested the info and have posted it here: http://www.convertthefuture.com/files/MAX11068_Rev_5_4_April_8_2008.pdf It looks like it supports 12 cells, under over voltage detection, and equa...

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