Electric Bikes - Help on upgrading to 36v!
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03-18-09, 09:32 PM
Hi all, im new to this forum and just got my ebike.I want to upgrade to 36v so i can see the power difference but im not sure how to do it? Is it something like a have to get another 12v battery and connect it to the stock battery in "series form" then i should get the extra boost?
03-18-09, 10:21 PM
Your current batteries are probably connected in series already and you would continue adding batteries in that form. Google how to connect batteries in series to learn how to do it yourself if you want to.
03-18-09, 10:32 PM
What type of bike (or kit) do you have? You need to make sure your motor controller can handle the extra voltage...
Hi- New to the site also. Same question. Would a Schwinn AL 1020 accept a 36 v power source. Thanks
03-19-09, 09:26 PM
I have a walmart Ezip and from what i heard from other forums, it can handle it just fine but i heard about some overheating problems. So i should just connect an extra 12v battery to my existing stock battery??
04-03-09, 07:06 AM
Generally speaking if u want to do this you need to change the ocntroller and motor accordingly. Do you have meters on your bike, if yes it should be also changed.
Just a note - if you are connecting batteries in series, you should add a battery that has the same number of amp hours and the same chemistry.
So if you have a battery that's 24V 10Ah Lead Acid, you could add a 6V 10Ah Lead Acid battery or a 12V 10Ah Lead Acid battery, or some other voltage, but keep the amp hours the same.
E-bikes that are sold as 24 volt bikes usually have parts in their controller that can't take 36 volts day in day out and not break.
You should either research the particular controller to find out if its internal parts can handle the voltage, or buy a controller that is appropriate for your motor, or accept that adding 12 volts to your 24 volt bike means that your controller could quit working at any moment. If you want, you could plan on just buying another controller if yours breaks - they're a lot cheaper than a whole e-bike.
These are the Popular Motor Designs..
24volt is really a obsolete design..the 36volt is the better design..
If your design is running at 24-volt..your stuck w/24-volt..
You want a 36-volt Motor..and a 36-volt Battery Pack..or..3-12volt Batteries..
The above LINK..shows a modification/
I have a 24volt system..the Scooter was delivered w/15-AMP Batteries(2)..
The replacement Batteries are now 10-AH..
I made this modification to use 18-ah Batteries../[end]
04-19-09, 02:24 PM
here's some golden rules:
- batteries in series creates a higher voltage battery pack
- batteries in parallel creates a larger battery at the same voltage that won't go dead as easily
- the power rating of you motor is an indicator to how much heat it can handle before it burns up. As long as you don't overheat the motor, it will take the extra power and deliver extra performance.
- all batteries in a battery pack should have the same Ahr rating, if you don't, then the weakest battery will always go dead the fastest, and it will always take the most charge current when recharging. not a good long term strategy because that battery will take a real ***** kicking.
- if you are searching for people that have overvolted their bikes, don't take the word of just 1 person. try to find several people that are doing the same thing.
- Don't exceed the Amp ratings of your controller, otherwise it might burn up.
- if you aren't prepared to lose or damage something, then stay stock and be happy.
best of wishes to you!
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