383L+ field power solution?

[jkrassner]

I will be in need of a portable power supply for the camera and EFW2. I'd like something I can travel with (airplane) that doesn't weigh a ton. Does anyone know what the power draw is for this setup? Can anyone recommend a power solution that doesn't require lugging a large (e.g. 18AH) battery? Thanks

[Chris]

I've measured the 383L+ as taking about 2A at 12V with the cooler on.  This means that in theory an18Ah battery will run it for 9 hours, but should be used for less because batteries don't cope will with being fully discharged.  I don't know about the filter wheel but it probably isn't much.

Lithium batteries are lighter, but at a cost and airlines are nervous about flying with them.  I don't know how they feel about sealed lead acid batteries.

The 7Ah SLA should give you 2 to 3 hours, will that be long enough for what you need?

BTW the 383L+ manual says 2.5A so I may be being optimistic.

Chris

[chrisjbaileyuk]

http://www.lithiumion-batteries.com/products/12v-20ah-lithium-ion-battery/12v-20ah-lithium-ion-battery.php weighing in at 7lb but not cheap.