Burgerman wrote:Theres nobody else with a higher voltage system, and the roboteq setup is very experimental and was almost perfect when we started rewriting the control script. Or Lenny did. Which got a bit complex. At that point about 7 months ago I cant test due to pressure sore and bed...
Burgerman wrote:I have one big connected BLOCK of 13S 72Ah battery. It has a 10sqmm centre tap at cell 7.
It leaves me with 2 connectors. One is 6S the other is 7S. Both look identical, both are special SubD connectors. They allow 40A charge and balance. Because the 2 cables are the same, and because the PL8 is set to auto cell count, I can connect either cable, to either charger, or use 1 charger to charge one half at a time. Because the chargers are floating (isolated) from each other, there's no danger connecting both together.
You can use ONE of these https://lh3.googleusercontent.com/-Mrha ... CN0279.JPG
My 8S cable. Use 2 for a 13S pack or charge half a pack at a time with 1 charger.
http://www.wheelchairdriver.com/BM3-con ... le-40A.jpg
I made up 2 cables 1 meter long using 2 connectors, instead. One for each half of the battery. Like these:
viewtopic.php?f=2&t=5534&start=80
viewtopic.php?f=2&t=5534&start=60
download/file.php?id=3480
I charge at 40A 6S and 7S so can fully recharge a huge 45 miles of range in 1.6 hours...
See cable being made up above. Simple wheelchair connection. use ONE cable on an 8S chair, 2 cables on the 13S chair. And 2 chargers. Each charge cable is wired for 8S. So only the chairs are wired for 6S + 7S (43V) or 8S 24V So all charger to chair cables are the same.
PARTS viewtopic.php?f=2&t=1813&start=620
HotColors wrote:What is your opinion on the Graupner charger? I think it's under powered for fast charge times. Not sure about pc connectivity either. Their website says you can monitor the charge via PC. But it can balance the pack as a whole, which I like the idea, just not sure it makes much difference if you have PL charge quality.
Burgerman wrote:Dont buy a dual one. Different presets, many firmware differences, reliability issues, and they are common ground so you cant charge more than 8 cells easily.
Burgerman wrote:Thats cheap enough to give it a go.
Download the software for PC and I will send you a preset. But it has a few issues with its safety nazi settings in firmware. And is more restrictive. So less useful than a single PL8. Update firmware, ASAP and you will need the FUIM3 thing to connect to PC.
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