The series connection of two identical batteries allows to get twice the rated voltage of the individual batteries keeping the same capacity. 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.

Battery Charger 48v 12v 24v 36v 60v 72v Automatic Maintain 40 200ah 16amp Max Volt Current Manually Adjusted With Clips Ammeter Suitable For Golf
12v in series 24v. I would like to install a 24v starter without having to replace all of the lights accessories and other components. Could i run two batteries in series to run the 24v starter while connecting the 12v lights and accessories to one of the batteries and using a battery isolator to charge both batteries from the 12v alternator. I thought if you raised your panel voltage in series the battery bank would need to be raised also in this case 24v. The sportsman series of chargers answers these needs. Im guessing the mppt compensates for this but that info i havent found. This line of chargers is designed for all types of battery applications.
Hate to ask but this appears to me as 4 100w panels 2 in series making 24v to a mppt charge controller then to a 12v battery bank in parallel. Friends this video fully describes detail and effect of series and parallel connections in solar panels and in batteries its also gives detail and brief information about difference and. Sportsman series battery charger 20a 2 10a banks 12v24v. Our customers asked for a series of chargers that were smaller lighter and economically affordable. The most straightforward way to force a 12v led strip to work in a 24v system is to split a 12v led strip into two identical 12v led strip segments and connect the copper pads in series such that the sum of the voltages adds up to the 24v supplied by the power source.