I plan to build a10kw 24v pack for my RV camper, to replace my dying lead-acid system.
Pack is going to be charged by solar and alternator.
I was also thinking about investigating the possibility to be able to plug in to standard J1772 EV charging stations. There seem to be some interesting open source projects out there for doing this.
Since some parts of my truck are in flammable material(wood), i plan to put the pack in a steel enclosure under the truck with venting holes in a safe direction, (i have mig, tig and access to a cnc that can cut metal).
I really want to overkill everything related to safety since i need to feel safe enough to sleep in there.
I dont decided yet if and for witch bms to go for.
My understanding is that imbalance increase while charge/discharge C rating increase. Since everything in my truck is low power, i should be under 0,3C. To not overload my alternator, while driving i was planing to build in a 500w cell balancing hobby-charger.
So my pack would be balance charged on a regular base anyway, plus low C rating, so i might get away without BMS? But in this case i would feel safer if there was some safe guard.. a circuit who disconnect pack if a certain voltage is reached or some of those top balance bleeders if i find reliable ones.
I plan to never charge to 100% to increase circle life.
I welcome any suggestions, specially about things i should do different because my system is going to be exposed to vibrations.
Has anyone ever open one of those MPPsolar units? I wonder if build quality is good enough to withstand vibrations while driving.
Pack is going to be charged by solar and alternator.
I was also thinking about investigating the possibility to be able to plug in to standard J1772 EV charging stations. There seem to be some interesting open source projects out there for doing this.
Since some parts of my truck are in flammable material(wood), i plan to put the pack in a steel enclosure under the truck with venting holes in a safe direction, (i have mig, tig and access to a cnc that can cut metal).
I really want to overkill everything related to safety since i need to feel safe enough to sleep in there.
I dont decided yet if and for witch bms to go for.
My understanding is that imbalance increase while charge/discharge C rating increase. Since everything in my truck is low power, i should be under 0,3C. To not overload my alternator, while driving i was planing to build in a 500w cell balancing hobby-charger.
So my pack would be balance charged on a regular base anyway, plus low C rating, so i might get away without BMS? But in this case i would feel safer if there was some safe guard.. a circuit who disconnect pack if a certain voltage is reached or some of those top balance bleeders if i find reliable ones.
I plan to never charge to 100% to increase circle life.
I welcome any suggestions, specially about things i should do different because my system is going to be exposed to vibrations.
Has anyone ever open one of those MPPsolar units? I wonder if build quality is good enough to withstand vibrations while driving.