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Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: cep55 on June 30, 2017, 01:54:31 AM

Title: FXS battery pack, charging off bike...
Post by: cep55 on June 30, 2017, 01:54:31 AM
Hi all,

Well, they're multiplying! Just added an FXS to complement my SR. What a blast the FXS is! I didn't think I'd ever be able to ride one, given the seat height, but Hollywood Electrics lowered it for me and it's perfect. (If you need a little vertical help, definitely talk to them, they have a short version of the OEM shock they'll swap with your original, and likewise for your seat.)

So I have a question about charging the batteries off-bike: Is there a particular order in which the bike draws power from the batteries? for example, does it deplete the front one then move to the back? Or does it draw from each equally? I'm just wondering in what order I should go about charging them when the bike gets low on charge? Which should I pull first?

I appreciate any other tips, as I found the manual a little sparse in this area.

thanks!
Christina
Title: Re: FXS battery pack, charging off bike...
Post by: Keith on June 30, 2017, 02:55:03 AM
The bike tries to use both packs equally at the same time. If one has a higher charge, it will use it until it matches the lower charged one and then use both together. That can reduce the bike performance at high speeds and torque demand since it can't use both packs when they are unbalanced. Charging both packs together in the bike is good but slow. I use two external chargers to do both packs off bike. If you can only charge one at a time, I guess you should try to add the same amount to each.
Title: Re: FXS battery pack, charging off bike...
Post by: cep55 on June 30, 2017, 03:04:52 AM
Very helpful, thanks Keith!
Title: Re: FXS battery pack, charging off bike...
Post by: Say10 15FX 16FXS on July 01, 2017, 03:34:47 AM
In case you didn't know, you'll need the adapter to charge off the bike.
Title: Re: FXS battery pack, charging off bike...
Post by: BrianTRice@gmail.com on July 10, 2017, 01:07:34 PM
Keith made an unofficial manual entry for this and then I went through and tried to systematize it a bit:
http://zeromanual.com/index.php/Advanced_Modifications#Charging_Off_Bike (http://zeromanual.com/index.php/Advanced_Modifications#Charging_Off_Bike)
Title: Re: FXS battery pack, charging off bike...
Post by: Say10 15FX 16FXS on July 11, 2017, 03:40:12 AM
Thanks for the diagram. I bought the adapter but I couldn't get it to work!?! After talking to some people we discovered that there are 2 different ones. I think it's 2013 and earlier has 1 signal wire, while the newer version has 3. My dealer closed ( nothing to do with Zero, just closed). Harlan sorted it and swapped me for the 3 wire type, thanks again!! Works fine now. I had 2 batteries that were replaced under warranty so I took the Anderson connectors off them. Now with a couple SBS75X connectors and some wires, etc. I can build 2 more and sell them.