If talking about straight switching from parallel or series between 2 banks that’s possible but the BMS situation I’m not sure about.
Was thinking I could double the amp hours for the battery when I was in flat areas but toning it down for curious friends would be an added bonus
Would it really matter? Same watt hours
I’m confused what the benefit of having a 12s1p & a 6s2p battery is when you could just have a 12s2p? unless slower with less torque is the goal? It certainly won’t go further in my experience. 12s with FOC on a FOCBOX is more than I’d try though…
I already have two boards with pretty similar parts I use my 6s all the time and my 12s sits in my trunk unless I am in an area with lots of hills of have a friend riding with me this build was me trying to combine them so I could potentially get rid of my first set up the 6s. Two hybrid decks would be way better then one of each
So you want to carry 2 diff battery setups and be able to switch between them?
I didn’t want to mount two sets of batteries I wanted to be able to switch from parallel to series with a switch. It’s the first time permanently mounting a battery so naturally i found myself trying to add way more features then I need to. If it’s impossible or will ruin the efficiency of my set up then I can always keep the 6s for other people since it lasts all day, and is probably better for people to learn on anyways.
It’s more to tone it down in flat areas and for beginners
You can just load a low power profile using the extended firmware and an Android or ios app and just have a 12s battery
So I decided to cut the system in half because having all four on one line brought the amperage higher then my parts can handle. After a bit of reading I saw these diagrams
Forgot to add a voltameter at the anti spark switch
Definitely don’t hook it up like you have drawn.
If you’re trying to put them in parallel, the polarity of the top battery is reversed. If you’re going for series, it’s even more wrong (For series, it should be: lower battery NEG to anti-spark NEG / lower battery POS to upper battery NEG / upper battery POS to anti-spark POS)
And you can’t hook them up in parallel while connected to a dual balance charger
The balance leads will be on the outside of my case and the balance charger would have only been attached when I had the other electronics off. Or so I thought? I saw the page about using a loop key for this and assumed I could use the switch the same way? If I’m wrong, is there a better way to do it?
The first diagram is fine as far as I can see. I take it that little adapter will be used to connect the batteries together and to the Vesc? So it will be 12s1p?
Will you have to change vesc settings when you switch from 6S to 12S?
Yeah but there’s going to be another system parallel with this one with both receivers on the same channel
I ran in too many problems with having 6 and 12s on a switch but if you put the y harness on the outside you could easily switch between the series and parallel harnesses. I’m not sure if I’m going to do that yet. I baught an electric switch because the loop key design looks messy.
This is the best voltmeter I could find with the required volt and amperage rating. http://www.ebay.com/itm/DC-0-01-400V-0-1-300A-Wireless-Digital-Ammeter-Voltmeter-Watt-Power-Meter-K6I3-/192033533337 I’d need the larger one to keep up with my battery but it’s huge compared to others I’ve seen. Anyone have any better ideas? this seems like it’s a little overkill