PS/MC question

MoRo1212 said:

I have a department-store MTB, and a couple of Curry PMDC 600 watt motors,but only one 12 volt "Stinger" SLA to power them(not interested in LiPO!!);any1 have a practical voltage multiplier schematic/circuit to power these 24 volt PMDC motors for a "DIY" hybrid motored MTB???

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They have them on eBay but not a lot of watts.

http://www.ebay.com/sch/i.html?_nkw=12v+to+24v+converter+step+up&_frs=1&_trksid=p3286.c0.m359

And here

http://www.wmjmarine.com/bcd605-12-24.html

It might be cheaper to buy another SLA battery to go with it and have 24v.

Or how about 2 small sla batteries to run the bike then use the big 12 sla battery to run a smaller watt 12 to 24v converter to back up the two smaller sla batteries ?

http://www.ebay.com/itm/APC-RBC29-R...-/300696659187?pt=PCA_UPS&hash=item4602eae4f3

I dont understand why you arent interested in lipo batteries. most e-bikes use lipo batteries. I do believe lipo has a longer range than sla. either way, I have read that it is possible to make an e-bike self charging.