Battery back up

Silent · Sep 4, 2019

Why do they charge so much for battery back ups?
You can made a far bigger, better one for much cheaper. This guy is one of many that show you how Get this cable from ecotech for $5 https://store2.ecotechmarine.com/co...p/products/fused-vortech-battery-backup-cable
Get a big 12 battery and battery tender.
So many ways to do it for cheap. Anyone else have a DIY battery back up?

JustinSmi86 · Sep 4, 2019

Silent said:
Why do they charge so much for battery back ups?
You can made a far bigger, better one for much cheaper. This guy is one of many that show you how Get this cable from ecotech for $5 https://store2.ecotechmarine.com/co...p/products/fused-vortech-battery-backup-cable
Get a big 12 battery and battery tender.
So many ways to do it for cheap. Anyone else have a DIY battery back up?

Following

Entz · Sep 4, 2019

Yeah not to mention the commercial ones have tiny batteries in them.

There was a great thread on here where someone used a solar charge controller and an AC adapter that was really slick.

Entz · Sep 4, 2019

This one by @Taxus812

Solar generator for backup power.

I had posted this in my build log and several people thought I should do a writeup on it so here it goes. Sorry if it is long winded I never wrote up a diy. (Disclaimer I’m not an electrical engineer just a hobbyist with some experience tinkering with electronics.) I stumbled on a simple...

www.reef2reef.com

There are some turnkey ones that will do it all as well. Charge and passthrough at the same time. Something like a AIMTOM 155 (or the bigger one). Though I am not sure of the quality. Or the Goal Zeros. Very Expensive though and not worth it IMO.

edit: somehow AC changed Very to Yeti Oo

Silent · Sep 4, 2019

awesome @Entz Thanks for the link.
I replaced the battery in my truck so I used that as battery back up. Just buy the $5 cord from Ecotech and some connectors and connect the battery to a battery tender and done. 12v car battery will last a long time running a couple powerheads.

motortrendz · Sep 4, 2019

I replaced the battery in the ecotec unit with a larger battery. 35ah instead of that 18ah that's in it (btw it's a 35$ battery) I have a deep cycle marine battery in my garage I keep kn hand incase needed

Taxus812 · Sep 4, 2019

Entz said:
This one by @Taxus812

Solar generator for backup power.

I had posted this in my build log and several people thought I should do a writeup on it so here it goes. Sorry if it is long winded I never wrote up a diy. (Disclaimer I’m not an electrical engineer just a hobbyist with some experience tinkering with electronics.) I stumbled on a simple...

www.reef2reef.com

There are some turnkey ones that will do it all as well. Charge and passthrough at the same time. Something like a AIMTOM 155 (or the bigger one). Though I am not sure of the quality. Or the Goal Zeros. Very Expensive though and not worth it IMO.

edit: somehow AC changed Very to Yeti Oo

Thanks
Mine is still working well.

laverda · Sep 8, 2019

You can get old computer UPSs that just need a battery for free or close to it. I then modify them to run 12 volt DC pumps directly.

Here is one of mine.

Silent · Sep 8, 2019

@laveyes those work great for short power outages

laverda · Sep 8, 2019

It will run a Tunze pump for a few hours. I have a larger one that will run my return bump for up to 5 hours and the axulery battery pack is hot swappable.

don_chuwish · Sep 9, 2019

I get about 2 hours out of my Back-UPS Pro 1500, once Apex turns off everything but one Tunze PH (slowed down to 35%). That's usually plenty of time for either the power to come back on or for me to get the generator going. Also have a battery backup air pump I can use for any QT systems I have going at the same time.

Chris Wells · Sep 9, 2019

This is what I just put in recently from ideas on this forum. I should get 10 hours on return pump and 1 heater or up to 20 hours on just return pump. This inverter switches automatically like mentioned above. It seems to work pretty well so far.