62gp wrote:I use a 24 volt battery minder/tender - stays connected all the time. It's computer controlled, keeps both batteries equally charged and desulfinates as well - Sonny
W. Winget wrote:If you want to charge both batteries at once with a 12 Volt charger you will need to disconnect the cables, then rig pos to pos and neg to neg in parrallel so they are one BIG 12 volt battery. This will also equalize the charge in the batteries (assuming they are both healthy) and give best results.
If you want to pull 12 volts off the batteries you can use the grounded battery and run something like a cigarrette lighter or such. Best though is an inverter that will bring 24 Volt down to 12 volt for the device you want, available from trucking stores. Reason: Draining the grounded battery will never allow the generator (altenator) to fully recharge the drained battery, or it will overcharge the full battery as it's running. Not a problem if you swap batteries fairly frequently in the Army and have a budget, but at home it will cost you...$$$
I've seen some places (maintenance from memory) put together an Ammo Can with two small 12 volt gel batteries in it making a short 24V Jumper (Slave) cable assembly they can insert into the Slave receptacle, then move the vehicles around, disconnect and not worry about two batteries draining down when stored. (I assume the vehicles batteries were removed and the ends secured to prevent grounding.)
In my Command Car (12v) I run two 12 volters in parrallel so I have more amperage similar to the large (expensive) long Wiard that it originally came with. Totally not needed as I'm not pulling the battery down with a radio for hours on end, so a common car battery will do me fine for years.
Don't forget, Interstate battery dealers sell a LARGE 12 volter you can get for around $40 as a Blemish and two of these do well in a Deuce or other 24 volt application where you need some cranking amps.
You should not run a vehicle without some sort of battery connected into the system, as the diodes in the charging altenator will fry. Unlike the old trick of disconnecting the battery to see if the system is charging when we had older tougher charging systems.
V/R W Winget
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