Today I picked up a new deep cycle battery.
Now it's time for a 'real world test' of my home made power pack set up with a brand new battery larger than the old motorcycle one I first experimented with.
The new battery is slightly larger in footprint, but still fits in the lunch chiller bag I used for the original set up.
It is a deep cycle sealed AGM battery with 25 Ah capacity, this is well up from the 8.4 Ah SLA motorcycle battery, so I expect good results.
The 'old' [wouldn't start the bike consistently] battery gave me 5 hours of use with humidifier and heated hose running, so I will run this one until it goes flat in however many hours/nights it runs for a comparison... though I have upped my fixed pressure from 7 to 8 since the first test, so there will be a small increase in power consumption I would suspect.
The new battery cost me $109 - the total cost, including all the other sockets and bits would come to no more than $135 to $140 all up I don't think.
Total weight of the setup is 7.5 kg... not the lightest, but still well under the weight of most of the car battery pack combos available, and easily manageable in among my camping gear I carry on the bike.
It will also serve well for tent camping in the 4WD without having to be camped right next to the vehicle to use the on board battery.
And a backup for if the home power goes out at any time.
Close up pic so you can all read the specs for yourselves. [saves having to ask me ]
Still fits in the original 'prototype' bag I used... but I may ultimately put it in a different type of bag or case, I just need to make sure whatever it is in doesn't wear a hole through my saddlebags on the bike.
The kinds of places I head to on the bike.
An update of how many hours the new battery gives me will follow.. once it goes flat and the CPAP stops running.
Cheers,
Ock.