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Sector E1 12v battery.
Just been doing a Li ion conversion on a customers E1, and with the old pack disconnected (DC to DC runs all the while with pack connected) the 12v battery was showing 4v. Its worth shutting off the main pack occasionally (big red button near your right leg on UK spec machines)  and checking the 12v battery. Once the pack is off measure the 12v battery with a multimeter, its under the opening beneath the drivers seat behind the drivers legs.
. Its important if you use the winch, as the DC to DC isnt man enough on its own to power the winch under load. Its important for me as I need a decent 12v supply to run the Electronics on the conversion.
The battery is a YTX20L-BS

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