Editing Auxiliary power unit (section)

==Armored vehicles==
{{missing information|section|modern MBTs, especially on the M1 Abrams which additionally needs help with fuel consumption on idle|date=October 2021}}
APUs are fitted to some [[tank]]s to provide electrical power without the high fuel consumption and large [[infrared signature]] of the main engine. As early as World War II, the American [[M4 Sherman]] had a small, piston-engine powered APU for charging the tank's batteries, a feature the Soviet-produced [[T-34 tank]] did not have.<ref>{{cite web |url=https://iremember.ru/en/memoirs/tankers/dmitriy-loza/ |title=IRemember.ru WW II Memoirs |last=Loza |first=Dimitri |date=September 21, 2010 |website=iremember.ru/en |publisher=IRemember |access-date=June 13, 2017 |quote=Still one great plus of the Sherman was in the charging of its batteries. On our T-34 it was necessary to run the engine, all 500 horsepower of it, in order to charge batteries. In the crew compartment of the Sherman was an auxiliary gasoline engine, small like a motorcycle's one. Start it up and it charged the batteries. This was a big deal to us!}}</ref>