Thank you for the information. This is kind of curious to me though. If the little electrical system can charge at the same rate as the batteries discharge then why can't the electrical system just power the gear? If however, it took say 4 times longer to charge than drain, it would make sense. Only 1/4 of the energy would be needed, but over a longer time. So, if you can charge in, for example 1 hour, and drain at 1 hour the heated gear you are using is truly efficient and doesn't use as much energy as the gear that plugs directly into a big BMW. If that is true, I bet the gear could be powered directly if the required voltages could be made. That is pretty easy and cheap since we do that all the time in the world of radio controlled airplanes and helicopters. Too bad I'm so freaking busy, but maybe someone else should put that together and sell it🙂
I’m not an engineer, but in layman’s terms my setup is not efficient. It’s going from 12 vdc from the bike to ac and from there back to 7.4 vdc for the batteries. A better setup (though nowhere near as cheap or available) would be a dc-dc converter. The reason it can’t just power a full rig of 12vdc gear is there is simply no capacity there. You’ve got maybe 60 watts to play with. My 12vdc liner is 90w by itself. Gloves are typically another 40w. By contrast, battery powered gear typically runs at much lower wattages, in a tradeoff to increase battery run time. The timeframe to charge is never exactly the same as discharge, no. But it’s close enough to keep on going all day, and that’s all that matters.
Very informative video. I didn't know it so easy and inexpensive. Thanks for sharing your knowledge.
Thank you for the information. This is kind of curious to me though. If the little electrical system can charge at the same rate as the batteries discharge then why can't the electrical system just power the gear? If however, it took say 4 times longer to charge than drain, it would make sense. Only 1/4 of the energy would be needed, but over a longer time. So, if you can charge in, for example 1 hour, and drain at 1 hour the heated gear you are using is truly efficient and doesn't use as much energy as the gear that plugs directly into a big BMW. If that is true, I bet the gear could be powered directly if the required voltages could be made. That is pretty easy and cheap since we do that all the time in the world of radio controlled airplanes and helicopters. Too bad I'm so freaking busy, but maybe someone else should put that together and sell it🙂
I’m not an engineer, but in layman’s terms my setup is not efficient. It’s going from 12 vdc from the bike to ac and from there back to 7.4 vdc for the batteries. A better setup (though nowhere near as cheap or available) would be a dc-dc converter.
The reason it can’t just power a full rig of 12vdc gear is there is simply no capacity there. You’ve got maybe 60 watts to play with. My 12vdc liner is 90w by itself. Gloves are typically another 40w. By contrast, battery powered gear typically runs at much lower wattages, in a tradeoff to increase battery run time.
The timeframe to charge is never exactly the same as discharge, no. But it’s close enough to keep on going all day, and that’s all that matters.