majorweld Posted July 29, 2019 Share Posted July 29, 2019 Hello I have a Reynolds Broughton 44 . Bates equipped truck. I was wondering if the engine driven generator is 24 volt ? I'm guessing by the 4 x Hawker 110ah 12 v battery's with 2 banks wired in parallel that it is a 24 v system with the 4 battery's producing 440 ah ? Is there any kind of regulator to prevent overcharging , boiling up the battery's ? Also is there any way of converting it down to 12 volts so I can run the battery's in series 12 volts so battery's are charged when driving and without changing all the wiring It can easily when parked up run a fridge, lights and recieve top up charge from my 200 watt 12volt solar panels. Anyone have any thoughts or knowledge most appreciated , basically I was hoping to keep the engine generator to charge up battery's for leisure camper van type use and not military radios . Cheers guys Quote Link to comment Share on other sites More sharing options...
radiomike7 Posted July 29, 2019 Share Posted July 29, 2019 (edited) 3 hours ago, majorweld said: Hello I was wondering if the engine driven generator is 24 volt ? I'm guessing by the 4 x Hawker 110ah 12 v battery's with 2 banks wired in parallel that it is a 24 v system with the 4 battery's producing 440 ah ? No, 4x12v 110ah batteries wired in series/parallel would give 24v 220ah Edited July 29, 2019 by radiomike7 Quote Link to comment Share on other sites More sharing options...
ianhc Posted July 29, 2019 Share Posted July 29, 2019 Hi All BATES and BMETS RB44 were FFRs so the system could run itself but with the ability to use an external 24v source if available. I can not remember if there was a second 12v alternator fitted as standard as with some landrovers. The regulation is via the standard FFR system, but if the batteries are not checked they will run dry, bad maintenance!!!! Quote Link to comment Share on other sites More sharing options...
ferretfixer Posted July 31, 2019 Share Posted July 31, 2019 The VEHICLE is a 12volts system. The supply for the Radio Shack is 24v. TWO separate compartments for the batteries of each system. I think there were two alternators fitted? Obvs 12v for the vehicle, & the bigger 24v version for the shack. Without refering to a wiring diagram, this is unconfirmed. But BELIEVED correct. Quote Link to comment Share on other sites More sharing options...
andym Posted August 4, 2019 Share Posted August 4, 2019 An FFR or TCB RB44 does indeed have two alternators, one 12V for the vehicle and another, 24V for the radio batteries. The two systems are completely separate. Andy Quote Link to comment Share on other sites More sharing options...
Go4x4 Posted March 8, 2021 Share Posted March 8, 2021 Did anyone ever answer the original question? It’s just I’m having the same issue with a Wolf FFR generator over charging - the standing voltage generated is 28.6v ( fine fo4 the two leisure batteries). However when running and speeding along the voltage goes up relative to speed. I’m getting 32 v at 55mph. So a regulator of some sort needed - would appreciate any suggestions. Quote Link to comment Share on other sites More sharing options...
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