Electrical: DC AC Conversions - Efficiency
I am an Electricity Novice: Assumptions: Boon-docker - does not use shore power, uses Solar Panels and Batteries, or generator. Refrigerator does not have propane option...electric only, AC or DC. ...
Forum Discussion
TWH99 wrote:
I have heard other RV people say, if going with a large setup and starting from scratch (not up grading 12V) a 24V system is best. Is it as simple as increasing the volts (doubling it in this case) cuts the Amps consumed in half ...
The big win of higher voltage battery bank is less energy lost due to voltage drop (heating the wires) between the battery bank and the load. 24V is good, 48V is better, BUT other than inverters and a few other items, there are not many 24V/48V appliances.
TWH99 wrote:
I will be doing a Lithium Battery Bank. Is a 24V, 100 Amp lithium battery roughly the same price and physical dimensions and weight of a 12V 100 Amp lithium battery.
Twice the energy, so twice the cost.
TWH99 wrote:
Anything less expensive…like smaller gauge wire, less resistance with long wire runs due to higher voltage?
If you down size the wire much, you will have voltage drop issues again.
TWH99 wrote:
All things being equal, is their longevity or durability differences between a 12V and 24V system.
Not really, but I think that 24V inverters are built a bit more "robustly".
TWH99 wrote:
I’m guessing the reason for not upgrading from 12V to 24V is all the major components must be also be upgraded, thus there is not much from the old 12V system that is useable in the new 24V system.
They do sell 24VDC to 12VDC converters. If you are only going to be running lights (hopefully LEDs) and maybe a TV and a cell phone charger, this should be all that you need.
