Originally Posted by
seanreit
Yes, you can charge the batteries while operating the bike with the batteries. Say, with an additional 12 volt battery on board with a dc to ac converter, and then attaching your charger to the ac port you just created, you would be effectively adding ah and voltage at a lesser rate than you are consuming likely though. Range extending vs hassle, might be a little upside down.
Yeah, wouldn't it be great if it really worked that way? But as you point out the usage is much higher then the charge. Consider the fact that all dc to ac inverters are very poor effiency. I don't remember how bad they are but it's somewhere between 60 and 80%. Not the mention the added weight of this additional battery will reduce the eff. of the packs the bike is running on. No offence but the only proven way to charge while riding is with a mini gas generator. Some guys have mounted them to the back of their bikes or on pull carts. Some of the people have reported very good results. But lets fact the fact that if you are willing to deal with a gas generator motor then why not just have a gas bike?
If you want to ride while charging get a second set of batteries or get bigger batteries in the first place.