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    Can I charge 60v SLA with a 72v charger?

    Hi everyone, I noticed my 60v charger stops charging at a certain point but it looks like some batteries could use more charge. I have a 72v charger. When i connect it, it appears to be chargin - is it ok to do this? Will it attempt to charge the 60v to 72+? Can I just keep it on for a...
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    New 100v controller is slower than old 75v - what's wrong?

    continued from my other thread: http://endless-sphere.com/forums/viewtopic.php?f=3&t=56946&p=850125#p850125 My bike was 70v stock SLA. I added 2x 12v 20ah SLA's Was now 84v. My old controller seemed to be able to handle the higher voltage for about 45 days before it blew. I also think it...
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    Epic fail installing new controller - burned my hands

    So I got my new controller today. Finally figured out how to connect everything, took it for a quick test drive and things were fine with the exception of the speedometer showing 0.00 constantly.. I was thinking as I rode it, I definitely want to increase the shunt on this thing. Then the...
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    Do you think this 72v controller can handle 84v?

    Hi everyone - what are the chances that this 72v controller has 100v fets and caps? http://www.omgeparts.com/ProductDetails.asp?ProductCode=P-CON-EAG Do you think this controller could handle 84v system? I really don't want to wait weeks to get a controller from china :/ even though it would...
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    I think I blew my motor :(

    I went to drive out of the garage today and something made a grinding sound and then the bike went dead... When I mean dead, I mean the throttle did nothing and the spedometer says 85km/h So when I turn it on now, the spedo says 85km/h, it seems to be showing the correct voltage etc. and when...
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    72v SLA vs 72v LIPO? us Lipo faster

    Hi everyone - I am currently running 72v of SLA - actually I have a switch that adds another 12 v making it 84v total and the controller can handle it fine. That being said, 7 SLA's is ridiculous. I want to switch to lipo. Right now I have 84v @ 20ah of SLA What would the equivelent be in...
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    Shunt Mod - Where to buy a watt meter and how does the math

    I live in Canada. I need a watt meter so I can see how much mod shunt is doing. I have a 84v 20ah SLA system. How does the math work - 84v x ?? = watt output? I would like to make my shunt bigger but I am not sure how much will fry the controller or the motor. Is it possible to make the...
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    72v SLA System - is a 2.5a charger strong enough?

    HI there, I have a daymak 60v bike but I added another 12v battery so the total is 72v. Right now I am using a 60v charger AND a 12v charger. I want to just buy a 72v charger. I see some cheap ones on ebay that only charger at 2.5ah -- does that mean it will take forever to charge? Do I...
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    Switch from 5-6 batteries - need help designing this

    I have 6 12v SLA's I want to be able to build a switch that will switch it from 5 batteries to 6 batteries in series. What is the easiest way to do this - is there an existing switch design I can just buy cheaply? Or does something need to be made from scratch?
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    Shunt Mod - How hot is too hot?

    Last night I did a shunt mod on my bike by adding solder to the existing shunt. Bike has WAY more torque now and after a 5-10 min hard test session I came back and the controller is little bit warm but not hot. Since I do not have a watt meter or a way of testing how much the shunt is doing...
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    Can my controller handle 84-96v?

    I have a Daymak that came with a 60v system - using 5x12v @ 20ah I bought a 6th battery to bring the voltage to 72v and it works fine. Before I added the 6th battery I opened my bike to look at the controller but it says nothing - no specs on the outside. I never opened it, I just figured...
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    Why is my charge dropping WHILE charging?

    Here is my situation. I have a bike with a 60v system (5 x 12v @ 20ah SLA) I added a 6th battery - another 12v 20ah SLA I only have a 60v charger so I can only charge my original 5 batteries I have a little crappy 12v charger which I use to charge the single 12v - I disconnect the last...
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    Converting a 60v Daymak into a 72v?

    Hi everyone! I have a 60v Daymak Beijing bike. I want to get more range and accelarion out of the bike and my thought was to add 1 more 12v 20ah battery. Is it as simple as just adding another battery in series, or do I need to replace the wires with thicker gauge? Do I need a new...
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