Solar battery maintainer vs Dual battery upgrade

[Burban22]

I have an 03 suburban and 97 k1500 that sit days / weeks at a time.

Anyone recommend a solar battery charger? There's so many on Amazon, wondering if anyone has one they recommend.

Also thought about adding a second battery, apparently you can add a second battery without isolator if both batteries are new and the same size. This is the much more expensive route but should never have a dead battery by doubling the capacity.

Parts and Links: Credit LsxMatt youtube
Passenger side battery tray:https://amzn.to/3pBZuvN
Battery hold down:https://amzn.to/3jlJQAH
Driver side battery tray:https://amzn.to/3joTlyV
Terminal posts:https://amzn.to/3C38XQ2
Wire ends for 2 gauge wire:https://amzn.to/30Cwdq4
Wire: https://www.wirebarn.com/2-AWG-SGT-BA...
https://www.wirebarn.com/2-AWG-SGT-BA...
Wire loom:https://www.harborfreight.com/3-8-eig...
Heat shrink tubing:https://www.harborfreight.com/42-piec...
Hydraulic crimping tool:https://www.harborfreight.com/hydraul...

 

[swathdiver]

Don't underestimate a man's ability to kill all the batteries! Even isolated batteries ought to be the same type and age for charging purposes.

@Spoolin Has more battery tenders/chargers than all of the forum members combined! Just kiddin', a little bit! LOL