mtts's latest activity

It's got to do something with the internal resistance differences between LA and LFPo?

That will be my next step!

Just noticed the Belkin model number, great minds think alike. I have been running a Harbor Fright 35AH for years with no battery...

Thanks for the fuse ratings and battery voltages! The Belkin is more like 45VA, if we use a formula based on the SUA1000XL 1000VA/800W...

Wow victron makes a 48-12? I have a 40amp output 13.8 that can input a wide range of voltage. Something like 40-60v. It was perhaps $25...

Sad, to say, there must be something internal that the Belkin does not like about LFPo. Even the 20amp/5sec battery generated a tone...

Ahh... so hypothetically if I run the 1/4" spade connectors outside the UPS to a... idk 50ah LFPo, I should be fine. Because it will...

Nope, that’s the issue. Perhaps one could be built from high C pouch cells. How many watts is the ups rated for? A 700W ups needs a 5 C...

And.. Can you suggest an LFPO that has a better peak load allowance? In the same form factor.

It's rated at 6. The UPS has a max load of 36 watts. But the self-test could be higher.

UPS: Belkin Battery Backup BU3DC001-12V Revision B Works fine with regular 12v/7ah LA (same dimensions as the Chins battery used by the...

I have several UPS's I'd like to change to Li-Ion, but they all require 2x 12V batteries, which makes it difficult to design a voltage...

This is fine for LA, not so much for Li-Ion packs.

All this discussion got me in the mood to search craigslist for UPS, so I'm spending a few minutes on Thanksgiving to pick up this unit...

I work for a large high tech company where there are many of these APC SmartUPSs around. The SLA batteries all last about 3 years and...