Recent content by mtts

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

That will be my next step!

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 rating. The Belkin's output is 12.4v DC, measured, as it's meant to back-up a single router that draws maybe 15 watts, so there isn't the same issue with AC...

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. All potted, you've seen them online. A router and most 12v equipment will run directly from that 13.8v. No need for an inverter to 120vac then a wall wart...

Sad, to say, there must be something internal that the Belkin does not like about LFPo. Even the 20amp/5sec battery generated a tone alarm as soon as i plugged it in. The alarm goes on, then off, then on, and switching the rear main power ON, gives the all-lights on the front, then 'On Battery'...

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 have a much larger BMS with a high AH C-rate draw capability. Any suggestions? https://www.amazon.com/BtrPower-Lithium-LiFePO4-Battery-Application/dp/B0C64Z96DB...

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 OP) Does not work with a 'DC HOUSE' 12.8v/6ah LFPo. Even w the switch in the back set to 'OFF', the UPS is trying to interact with the battery, and emits a...

How to tell me you've never reviewed the evidence, without telling me. Next

Yes. I cleaned up my grammar above, so it's more readable. I hear you, and wonder if putting extra panels inside a connex, with some sort of disconnect protection rated to handle that X100 blast to the panels (not the larger micronova: nothing will survive that, save being underground in a...

The problem is my question was one from my own broad ignorance. It is not easily answered. There is general PV to equipment protection (1), at the first level. Thank you for everyone's extremely thorough answers. For (2), those of you unfamiliar, 'Professor' Ben Davidson has written several...

It has occurred to me to move the innards to the conex, and have a separate set of panels non-deployed inside, to replace the fried ones on the roof.

Potentially, the cheaper version of that is two inline MC4 15 amp fuses? There's not more than 1 string right now.

I follow Ben Davidson's Suspicious 0bservers (with a zero not an 'O'). I am working on an 1800w array that is a series of panels of two types, adding up to a working voltage of around 180v, and around 10amps {although, I have seen it produce 2200 watts at one time!}. It feeds a Growatt SPF...