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Sorry if this has already been answered. I bought 16 of the 25 amp Navitas cells from BH a while back to build a 4s4p, 100 amp pack for a trolling motor that draws about 50 amps. I have since had a spinal operation and no longer have dependable use of my left arm. I have tried to make some bus...

I am something of a novice so can I get some advice? I built a plastic ammo box battery with 18650 cells from modems as a 4s configuration which charges to 16.8 volts. I put a small socket in the lid which has two USB charge ports and a small volt meter as well as a cigarette lighter socket and...

My 2 year old deep cycle battery needs replacing. I am going to build something around 80 to 100 amps as the house battery. Can someone recommend the best source for affordable cells to make a drop in replacement. I built one last Christmas for a trolling motor but it seems like a lot of things...

I bought some 28.8v, 7.8 ah modules from battery hookup to experiment with. (https://batteryhookup.com/products/samsung-8s) . I am likely going to connect 5 to 10 in parallel via bus bars and charge then with solar panels. but, all test at right at 32.1 volts with one a 27.9v. I want to hook up...

I have a honda 2200 watt generator that has a DC connecter for chargind a 12volt Battery. It is a blade recepticle with the blades at 90 degrees to each other. I want to fabricate a wire incase I want to use it for charging FLA at some future time. Can anybody tell me the name of the plug I...

I have a travel trailer with a converter built in to the breaker panel which serves a 12v fla battery. I have installed a 24v lithium battery charged via solar panels. I have also installed a DPDT relay which switches the breaker box to shore power when plugged in and switches back to the...

This may seem like a dumb question, but I don't have much experience with solar power. So, please just overlook my ignorance. I am curious if I can connect an ebike charger to my Epever BN which is set for a Tesla S battery in a small travel trailer. the ebike charger is 29.4 volts at 3 amps. My...

I have a battery with 18650 cells that is 7s4p or 25.9 nominal volts. I have a 100 watt panel which is about 18-20 voc. I also have a 12/24v PWM SCC that has a lithium setting. The manual indicates that it will charge at 28.8 volts if I connect to the battery first then connect to the panel...

Using 3s 5p, 3.7v cells and 1 100watt 12v panel to power led lights in a rural setting. Any suggestions for economical charge controller? Will a bms work with a cheap nonprogramable charger? I am new to this world, ao please overlook my ignorance. Any input is welcomed. Tnanks

I am new to this group and I am just blown away at finding a group of people interested in developing solar applications for the common man. I have several projects starting that involve small systems. I hope to scale it up later as I get up to speed with what is possible and feasible for a real...