This way the two batteries will be connected as a common unit and any voltage drop on the earth cable from your earth distribution point back to the batteries will be common to both batteries and they should remain equalised. How to wire batteries in series or in parallel step 1.
How To Wire Batteries In Series Or In Parallel 5 Steps
Connect two 9v batteries together. In this example we will. More power. Wiring two batteries in series. The series connection of two identical batteries allows to get twice the rated voltage of the individual batteries keeping the same capacity. A minute later i almost burned my hands on them. Following this example where there are two 12v 200ah batteries connected in series we will have a total voltage of 24v volts and an unchanged capacity of 200ah ampere hour.
The other day i changed the batteries in the smoke detectors for my elderly mom. Okay youre going to need some batteries to wire together and some way to wire them together. You know how 9 volt batteries plug together pos to neg. Wiring two batteries in parallel. For ease of wiring you could interconnect the batteries with a suitable heavy grade cable starter motor size then run an additional main earth cable from the ve of battery b back to your distribution point for connecting all the earths together. While talking to her i was fiddling the old batteries and plugged 2 of them together.
Apparently connecting the pos to the neg caused them to grt hot.