"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> Solar DC Battery Wiring Configuration | 48v Design and Instructions for Wiring Batteries
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48v DC Solar Battery Wiring Diagrams

Below are suggested wiring topologies for connecting batteries in series to produce a 48v power supply for the solar air conditioner. Note that the batteries, as well as the solar panels, should be connected to the charge controller. The DC air conditioner always connects to the batteries. See also solar battery options.

Solar 12v x 4 Batteries - 48v   Solar 12v x 8 Batteries - 48v    
 wiring diagram 12v batteries for 48v
Click image to enlarge
  wiring diagram for 8 12v batteries for 48v
Click image to enlarge

When using 12v batteries make sure they are deep-cycle type. Marine batteries are not usually true deep cycle batteries. If the battery lists a CCA rating it is probably not a true deep cycle battery.

Note that 4 x 12v batteries are wired in a series to achieve 48v, there can be 2 or more 48v series of 4, wired in parallel to each other.


Solar 6v x 8 Batteries - 48v   Solar 6v x 16 Batteries - 48v    
48v battery wiring diagram for 8 six volt batteries, total 48v system
Click image to enlarge
  solar batter wiring diagram for 16 6v batteries
Click image to enlarge
  6v batteries are typically golf cart batteries, which are excellent for solar or DC powered air conditioner applications.

Note that golf cart batteries also may come in 8v which can also be used in a 48v air conditioner system, in that case you would use 6 or 12 (or any multiple of 6) of them wired in series/parallel similar to the way 6v batteries are wired.

Solar 8v x 6 batteries - 48v


DC Solar Connection Diagram

diagram using 6 x 8v batteries in series for 48v configuration
Click image to enlarge
  DC 48v solar system design includes solar panels, batteries, charge controller and DC air conditioner

Click here for information on solar charge controllers for solar AC.

Click here for general solar (deep cycle) battery selection information.

See 48v DC Solar Air Conditioner information main page

See DC Air Conditioner PDF

Click here for PV solar panel information




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