I have a 36V Bosch system on a Trek Verve+2. My charger is only a 2 amp system. It takes hours to charge my battery. What other chargers are available? Is the Satiator one I remember from Grin? Others I could buy. I think I want at least a 4 amp to get a faster charge without harm to my battery. Be Well, Bluesfrog.

I will also need an adaptor to fit to my three prong plug. ??? TIA and Be Well, Bluesfrog

I do not know of third party chargers, but Bosch offers a 4 A and a 6 A charger that claims a full charge in 2 hrs. The price is not terribly expensive, but still a hit to the wallet

Bosch does a 4ah charger and at least in EuroDisney they do a 6ah charger. The 4ah charger takes about 4 hours from zero but I would avoid running it down to zero and if you are doing that regularly you either need to charge more or upgrade batteries to a 500wh.

Ideally you want to bring the bike down to around 20% and not store it for long periods at 100% for best battery health. Also feel free to charge overnight we do it all the time with no issue.

Be well also.

Thanks Marcus and Vegan for your information. I was looking at the Battery Satiator from Grin Technologies. I didn't determine which one to buy. I will look for the 6AH Bosch charger. Be Well, Bluesfrog.

Apologies. It seems the 6 amp charger is not available in North America, but they are sold in Europe and definitely cheaper than the Satiator

Try Hilti C 4/36-90 battery charger 7.2v-36v

How do you adapt the five pins on the charger to three on the battery? I suppose you have to know the correct ones to use? I need an electrical wizard here. It would be nice to have a larger capacity battery as well. I think this one is a 400 AH and it seems like I remember a 500 in the past. On one I was demo-ed a couple of years ago I was told you could get a harness to use another of the same size battery to double the AH available. That would be nice to do also. But their price of around $700 is too high. I may wait and see about a different controller and heavier battery when the warranty goes out. Probably to overvolt a bit. Musings of a novice I guess. I have never done any of these things. I am waiting to get a motor kit for a folding bike I have. It will be my first foray into building up an electric bike. Thanks for all the suggestions and Be well, Bluesfrog.