![]() The existing battery was an OK deep cycle battery that was mounted at the front of the trailer. Lead acid batteries are heavy and you can’t drain them past 50% without damaging them. Lithium Battery Replacement: $270 I wouldn’t recommend this mod unless you’re handy with electrical work and want to give yourself a bunch of probably unnecessary work. I installed it just under the sink because that cabinet space is so cramped that it’s unusable anyways. It has Bluetooth and aux in but those will probably never get used. It doesn’t sound great but it gets the job done. I found a very lightweight, compact radio on Amazon for $40 that had integrated speakers. Getting one with a cigarette lighter port will make future expansion easier. My buddy installed these 65 watt chargers in his tent trailer and they have even less vampire draw (but no readout). Update: as time goes on, higher power options will become available. Up to 45W PD (good enough for laptops) and 18W QC.Charge phones with or without a 120V hookup.Once it’s charging, it shows charging speed in watts With no USB connected, this one shows system voltage. I drilled a hole in the location I wanted it (one near each bed), then I wired in to the interior light circuit, which now has lots of headroom since I’m saving power on the bulbs. If you’re curious, I measured the vampire draw (power usage when nothing is charging) of this charger and I won’t be worrying about it: I opted for one that had both the older USB-A and the new USB-C connectors. This one was a bit more expensive than some others but it was very compact and could charge at a very fast rate. I picked up direct wire 12V USB chargers for $20 each. ![]() The readout on this charger shows charging speed in watts USB-PD and QC technology has come a long way and you can now charge your phone in under 1hr. I don’t want to have to remember power chargers, power banks, and I don’t want to leave phones charging overnight.
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