Hey All,
finally signed up after years of dipping into LZ to fix rattles and the like. I've got an idea and am wondering if anyone has done similar or has input.
I work in lighting for film/ads/ whatever and quite often have to deal with no or inadequate power on location. Normally we would rent a 7kva or larger gennie but as they don't fit on in my landy with my kit I've been bouncing around the idea of building a large LiFePO battery bank with a substantial inverter. My original thinking was just to upgrade the alternator and deal with slow charging times and very heavy guage cable but after looking about and realising there's plenty of 100A 48v starter/alternators available cheap now (about £100-£180 secondhand) and that the transfercase is already setup to have a PTO added I've re-evaluated.
My Current thinking is that I'll add about 4/800ah of batteries wired to 48v with the biggest inverter I can afford. I want to be able to comfortably push 16A out but 32 would be ideal (A 4k HMI light at full whack pulls about 18/19A allowing for Pf) with the PTO avilable to augment and recharge when needed.
Ive read that 4th gear is engine speed out the transfercase and since finding out that the TD5 uses an electronic throttle I'm thinking I can add a rpm govenor buy intercepting the signal lead and being able to switch it to a potentiometer. Allowing me, with an aftermarket Tach to dial the RPM in to a comfortable band for the load.
To house all of the batteries/ inverter I would fabricate a cabinet to sit in the unused space that I have under the wings. Perhaps with a little bulge if needed. Leaving me with access through external doors and a nice big ceeform connector and breakers that can be accessed externally.
What I'm looking for is obvious reasons this wouldn't work and any info out there on the PTO linkage, I am imagining I might have to fabricate the bracket and clutch mechanism unless there's something existing that can be repurposed?
Thanks,
Stephen.
Attached image of the Defender doing some work for entertainment purposes.
finally signed up after years of dipping into LZ to fix rattles and the like. I've got an idea and am wondering if anyone has done similar or has input.
I work in lighting for film/ads/ whatever and quite often have to deal with no or inadequate power on location. Normally we would rent a 7kva or larger gennie but as they don't fit on in my landy with my kit I've been bouncing around the idea of building a large LiFePO battery bank with a substantial inverter. My original thinking was just to upgrade the alternator and deal with slow charging times and very heavy guage cable but after looking about and realising there's plenty of 100A 48v starter/alternators available cheap now (about £100-£180 secondhand) and that the transfercase is already setup to have a PTO added I've re-evaluated.
My Current thinking is that I'll add about 4/800ah of batteries wired to 48v with the biggest inverter I can afford. I want to be able to comfortably push 16A out but 32 would be ideal (A 4k HMI light at full whack pulls about 18/19A allowing for Pf) with the PTO avilable to augment and recharge when needed.
Ive read that 4th gear is engine speed out the transfercase and since finding out that the TD5 uses an electronic throttle I'm thinking I can add a rpm govenor buy intercepting the signal lead and being able to switch it to a potentiometer. Allowing me, with an aftermarket Tach to dial the RPM in to a comfortable band for the load.
To house all of the batteries/ inverter I would fabricate a cabinet to sit in the unused space that I have under the wings. Perhaps with a little bulge if needed. Leaving me with access through external doors and a nice big ceeform connector and breakers that can be accessed externally.
What I'm looking for is obvious reasons this wouldn't work and any info out there on the PTO linkage, I am imagining I might have to fabricate the bracket and clutch mechanism unless there's something existing that can be repurposed?
Thanks,
Stephen.
Attached image of the Defender doing some work for entertainment purposes.
