That's a very good idea Cabrito.
For the uses you mentioned, that portable battery pack should fit the bill.
I borrowed my friends battery pack twice and it worked great.
Is the hole in the back of yours where the air compressor was? If so,
no wonder you removed it!
I'm interested in whatever solution you can come up with. This merges nicely with the discussion about fridges in bear country. With a "portable" battery, I can put the fridge and the battery in the bear box and Bob's your uncle.
A jump pack does have enough long term power for what I need,
My primary use for this will be to sit next to my Engel MT45 for extended outings without worrying about killing my starting battery.
I'm interested in whatever solution you can come up with. This merges nicely with the discussion about fridges in bear country. With a "portable" battery, I can put the fridge and the battery in the bear box and Bob's your uncle.
Any reason an not to use an Optima AGM Yellow Top in the National Luna box and leave the stock battery for starting? Since the National Luna PPP has an isolator, I would think this would be fine. Thoughts?