Does this chart look reasonabley correct? I really do not know how much amps I will be using but I intend to try to keep the out put down near 1300w, and reconing with the Grintech graphs that is about 1600 batterys amps. And all that is the average worst case senerio on the hills around here. Of course there are worse hills, but I don't intend to be racing up hills as much as my Cyclone 3000w motor could do.
So I was planing to buy a 17.5 ah pack [ 13s (48 volt) Killer Whale Ebike Pack ] from lunacycles soon. My usual route is about 8 to 10 miles round trip with mild hills, but with up to 450bls total combined weight.
How much less amp-hours would the battery have if I charge it to only 4.1v each cell?? Maybe I need to get the next voltage up from 48v.
Should I use the 3amp charger for a slow safer charge? Is the output of the chargers about the same as what they draw from the outlet? Or is there larger loss??
What is the amp draw of the 300w charger? Is there a way to slow charge with it? Yes I realize there is enough resistance in the pack to charge fast, but our solar house power system is not as robust as it should be. That is: the wires to my house are smaller than they should be for a long use of 300watts. As well as the 100watt charger that does my two large deepcycle batterys for off grid lighting etc. (10G 300 foot or more)
“These packs will easily put out 30amps (1500 watts)” and 50amps for 12 second bursts.
Does that mean the battery will “supply” only 1500 watts continulay without any heating over that the battery pack can deal with? What about adding a small dc computer fan? Seems like they would connect on to the BMS.