Fitting a higher voltage battery will give you a slightly higher top speed, maybe another 4mph on what you achieve on the 36v battery.Quick hypothetical question...
Have been offered a direct fit (physically) 48V 10Ah Li-Ion battery at a good price.
What would it do to my Alien Aurora 36V 10Ah?
If it cannot handle it, is there a modification to make it worthwhile?
The main reason I am looking at the 48V battery is that my current 36V battery is struggling to handle the 10mile daily commute. I now have 1 fully knackered battery and this one on its way out.If yer not fussed about going faster, but want a bit more torque, then simply carrying out a shunt mod might work for you.
As long as the battery isn't too old, you should still have a good bit of capacity left.
have you got any links on Watt meter and maybe fitting instructions thanksI have been running on 44v lipo (which is 50v freshly charged) for a couple of months using the stock 36v 6fet controller. The capacitors are also 50v and Ive had no problems so far. If the controller does let go, just get a new one and dont worry about any modding. You should get a wattmeter to keep an eye on whats happening.
keep us updated very interested,,,where are u getting the 48 v battery from thanksThanks for the info...
Here is a pic of the outside of the controller. Haven't had a chance to open to check ratings.
I shall open it up when I get a chance, and check the capacitor rating. If this is too low, can I replace it with a higher one, or will that cause other problems?
These are pics of the battery I have been offered (Its a Lithium Polymer type):
I haven't done any other mods to the bike yet, and would like to not explode anything
I've opened mine and there are some concerns.The inside of the controller will look like this:
There's an old thread 'controller' where those pics came from, member jbond opened one up and noted the main input cap is 50v so you could usefully replace it with a 100v one if OK at desoldering...there are three other caps to lookout for, one on each phase, if 50v they could be upgraded as well...
Thanks, and yes I've seen a few of these, and thought about trying it, but I am worried that it may not work with all the other features on the bike, like the power modes (low medium high). The biggest worry is that I cannot seem to match those wires (colours and looms) exactly with what I have.Hi Just Buy one off these or buy 2 so you have a spare
48V 350W Electric Scooter Bike brushless motor Speend controller Box 48volt | eBay
I have taken some photos... the resistor could be brown black brown, which I think would then be 100 ohm if I used the colour codes correctly? So I could go with a 150 ohm 3W replacement.The bulging caps are a worry, now's the time to change them. Replace all the 50v ones with 100v rated ones of the same capacity.
Brown, black, black is a 10 Ohm resistor which does not seem right. The one pictured is 150 Ohm and what I would have expected. The resistor is there to drop the battery voltage for the 5v regulator...if you are desoldering the caps desolder one leg of the resistor, lift it and measure the resistor value. You may even have to increase it to 220 Ohm.
I can't see any issue in fitting the 150 Ohm or 220 as a replacement, you'll need to do this anyway incase you exceed the input voltage of the regulator with the new 48v battery...go for a 3 watt one.
Is your controller exactly the same as the one pictured?