I got my cells from Cor for about 2 dollars a piece. Two strings of 20 is forty cells. 80 bucks. 36 for the BMS and 27 for the charger and my time and soldering/wires. Not much for a 5ah 60v pack. Since Covid I have plenty of time. Gotta get a hot glue gun. Turns out there is a reason they use the same diagram for my BMS for all the models. Turns out to save money they used a 16 and a five pin flat cable. I should have counted the pins and it would have made sense. I was over thinking it not knowing they used two cables to save money. Probably have millions of 16 and 5 pin cables. Not many 21 pin connectors thus my confusion. Duh. Should have counted first and not just looked at the two cables thinking of some exotic connection. It will be a very simple construction. BTW the Daly company is very big. Plenty of YouTubers have explained the unit in it's different voltages. Very robust for the money. Lawrence Rhodes
Message: 4 Date: Thu, 25 Jun 2020 15:26:05 -0400 From: "EVDL Administrator" <[email protected]> To: Electric Vehicle Discussion List <[email protected]> Subject: Re: [EVDL] 20s A123 battery pack for ebike Message-ID: <[email protected]> Content-Type: text/plain; charset=US-ASCII On 25 Jun 2020 at 16:35, Lawrence Rhodes via EV wrote: > So buyer beware. Documentation not included. Yeah, that costs extra. If you want instructions for this cheap stuff, you buy the same cheap stuff from an importer in the West. If you've chosen well, the seller will have written up reasonably clear instructions. He'll mark up the product to pay himself for his time. Wouldn't you? If you're REALLY lucky, maybe he'll even let you call or email with questions. That might cost still more, heaven forbid. Sometimes you can find somebody in a web forum who's figured one of these direct-from-the-sweatshop cheapies out. The time to look for that is BEFORE you buy. And then you may or may not be able to get the same gadget the online guy documented. Turnover of these Chinese manufacturers can be quick, and the regularly re-engineer them to make them cheaper and more profitable to build. All this messing around takes time. How much is your time worth? Did you save enough on the BMS's price to pay for that time? David Roden, EVDL moderator & general lackey To reach me, don't reply to this message; I won't get it. Use my offlist address here : http://evdl.org/help/index.html#supt = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = I am the one with no secrets. They [the Chinese government] have secrets. It is only because they have secrets that they can imagine everyone else having them too. -- Ai Weiwei = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20200626/5e4bd190/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/index.html INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
