Korishan
Administrator
- Joined
- Jan 7, 2017
- Messages
- 7,525
Background:
I have a SU2200 UPS I've put into service, especially since we're getting into hurricane weather and it's at least nice to not have the router/computer/monitor flip out if a tree limb brushes up against the power line.
The batteries I've used are reclaimed fork lift batteries. These are 6V Lead Acids. They hold a charge, but can't quite deliver high amp loads, which is fine for only needing about 500W max.
Well, today, we had something happen to the power. I'm guessing a tree fell on the line down the road. Will check that out at a later time. However, I was inspecting the UPS and battery voltages and I heard a hissing, slight popping sound. So I took two of the covers off the flooded batteries. They were definitely making a sound.
Here's the thing, I know that while under charging conditions, Lead Acids can off gas. They can also do so under heavy loads. But the loads these would of experienced at the time of power failure would be very low (I wasn't hope for a cpl hrs and my monitors would of been sleeping at the time). And also, the UPS would off been off for awhile by the time I checked them.
When checking all the batteries, they were all 6.5V, or 52V for the string. I checked the temps on these two and they weren't noticeably any difference in temp from the others. I didn't have my laser thermal gun on me at the time so I didn't check for a few degrees difference.
I did notice tho, that these two batteries are swollen a bit. Could this have any thing to do with the noises? I tried to do a search and of course I get results of "batteries will hiss/bubble while charging" on every result.
I have a SU2200 UPS I've put into service, especially since we're getting into hurricane weather and it's at least nice to not have the router/computer/monitor flip out if a tree limb brushes up against the power line.
The batteries I've used are reclaimed fork lift batteries. These are 6V Lead Acids. They hold a charge, but can't quite deliver high amp loads, which is fine for only needing about 500W max.
Well, today, we had something happen to the power. I'm guessing a tree fell on the line down the road. Will check that out at a later time. However, I was inspecting the UPS and battery voltages and I heard a hissing, slight popping sound. So I took two of the covers off the flooded batteries. They were definitely making a sound.
Here's the thing, I know that while under charging conditions, Lead Acids can off gas. They can also do so under heavy loads. But the loads these would of experienced at the time of power failure would be very low (I wasn't hope for a cpl hrs and my monitors would of been sleeping at the time). And also, the UPS would off been off for awhile by the time I checked them.
When checking all the batteries, they were all 6.5V, or 52V for the string. I checked the temps on these two and they weren't noticeably any difference in temp from the others. I didn't have my laser thermal gun on me at the time so I didn't check for a few degrees difference.
I did notice tho, that these two batteries are swollen a bit. Could this have any thing to do with the noises? I tried to do a search and of course I get results of "batteries will hiss/bubble while charging" on every result.