Motorcycle Repair: Charging two batteries, brake master cylinder, voltage gauge

Question
QUESTION: Is it possible to charge two batteries installed in a 2002 Road Glide at the same time or in sequence while the H-D is being driven?

I have converted the RG to a trike which allows be to dismantle my chair, place it in a compartment in the converted add-on, and drive.  Due to added electrical parts, linnear accuators, LED lights, etc. I do not want to be with out electrical power.  The second battery would be located in the add-on.

Thanks,

Jimmy D

ANSWER: You can run the batteries in series and charge both at the same time off the charging system on the bike, as long as you dont overload the system. You would have to calculate the amps of what you are adding, as well as what is on the bike and make sure you are not going over the amps that the charging system is putting out.
Happy holidays
Mike

---------- FOLLOW-UP ----------

QUESTION: The H-D manual indicates the '02 RG has a forty-five amp stator.  The voltage gauge shows 14.2 amps when the engine is runnig at about 2200 rpm.  Two linear accuators draw 1 amp each when they are used to open the hatch covers.  There are two hatches which are always opened at different times.  There is also a linear accuator to activate the rear brake master cylinder.  This accuator is controlled by linear slide potentiometer for forward and reverse to put on and let off the brake.  The stator has no trouble keeping the main batter charged.  The problem arrisses when I am off the trike and I am accessing the the storage space (the second hatch cover).  The accuators draw one amp, but do so rapidly which depletes the storage rapidly.

Is your original answer still valid with this added information?

Thanks,

Jimmy D

 All the extra LED lights draw less than 2 amps.

Do you  want pictures?  If so, how do I send an attachment to you containing them?

Answer
Your problem sounds more time related than amp related.
I would start by adding a battery, but use either a car battery or go with a Big Bore battery. Both would have more amps than a standard bike battery and would last longer in time when you are using the hatches. The other thing you can do is add a isolator, so that the extra battery is only used only for the hatches and the main battery is not being drained and will still start the bike. Then, when riding both batteries could be charged.
Good luck and happy riding
Mike