We found a Eaton 5E 850i USB DIN that had been left by the previous owners when we moved in our new home. It had clearly been sitting unused for a long time and I found out the battery was drained or flat after watching this video and opening it. I decided to try to "jump start" the battery with a 20V rechargable battery from a cordless drill to get the volts up high enough for a battery charger to start charging it. After trickle up, floating charging and desulfurization which the "smart" charger did automatically repeated 3 times the voltage seemed to not drop under 12.6V. The UPS has now been running for 24 hours supplying surveillance cameras and internet router with electricity. So far so good.
If your battery is continually dying every 2-3 years, I'd suggest there could be something not quite right with the charging voltages the UPS is using to re-charge/maintain the battery voltage. Does your power drop out a lot, and long enough for the battery to go flat each time? That will do it as well. Too many deep discharge cycles. I have batteries in quite a few UPS over 10 years old that still work well. The UPS units I install are generally 2-3x the actual wattage requirement, and being larger they can run for longer when the mains power fails without deep discharging the batteries. UPS units with additional external battery packs also tend to last longer because of this. IMHO, It's generally the charging voltage / circuit that kills (cooks) UPS batteries. You might read a lot about swollen UPS batteries.... This is generally being charged with too high voltage or current. Similarly not enough float voltage in the maintenance cycle will lessen the capacity of the battery. However there's many opinions on battery care, chemistry & charging. I only know what I have seen myself from 30 years in the IT industry. People change the battery and it fails again in a very short time (
I'd say power grid is quite stable, definitely there are no long outages, so going flat is not really an issue. Power drawn from it is not big either, usually less than 100W, so maybe it is the lower quality battery or the Eaton power management itself. But your point is indeed interesting. How much time can your 10yo batteries bridge compared to a new one?
Unless you get something really expensive like a lithium battery that pretends to be a lead-acid to the charge controller you won't be able to fit a larger capacity battery, 9Ah is the limit for this size.
0:22 about your lenovo NAS to co-op with this UPS. you can try NUT utilitiy, it should help. I used an old rpi 2 to transfer this eaton UPS to full network UPS, for sure, your lenovo NAS will also handle this. Techno Tim made full tutorial on YT - Network UPS Tools (NUT Server) Ultimate Guide
I have a situation with mine, 1500I, where even after unplugging everything and turning the UPS off, it still beeps (around every 2 seconds) with the fan running. Is it safe to replace batteries while it's in that state?
@@tomscrapwood7883 Thanks still for taking the time to answer. I was advised that it's safe to disconnect the battery even while it's in that state. After doing so and replacing the batteries, the UPS remained off. Once I turned it back on, the beeping stopped. In case this is of help to anyone else.
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We found a Eaton 5E 850i USB DIN that had been left by the previous owners when we moved in our new home. It had clearly been sitting unused for a long time and I found out the battery was drained or flat after watching this video and opening it. I decided to try to "jump start" the battery with a 20V rechargable battery from a cordless drill to get the volts up high enough for a battery charger to start charging it. After trickle up, floating charging and desulfurization which the "smart" charger did automatically repeated 3 times the voltage seemed to not drop under 12.6V. The UPS has now been running for 24 hours supplying surveillance cameras and internet router with electricity. So far so good.
So today there was a power outage and the UPS performed perfectly.
If your battery is continually dying every 2-3 years, I'd suggest there could be something not quite right with the charging voltages the UPS is using to re-charge/maintain the battery voltage. Does your power drop out a lot, and long enough for the battery to go flat each time? That will do it as well. Too many deep discharge cycles. I have batteries in quite a few UPS over 10 years old that still work well. The UPS units I install are generally 2-3x the actual wattage requirement, and being larger they can run for longer when the mains power fails without deep discharging the batteries. UPS units with additional external battery packs also tend to last longer because of this. IMHO, It's generally the charging voltage / circuit that kills (cooks) UPS batteries. You might read a lot about swollen UPS batteries.... This is generally being charged with too high voltage or current. Similarly not enough float voltage in the maintenance cycle will lessen the capacity of the battery. However there's many opinions on battery care, chemistry & charging. I only know what I have seen myself from 30 years in the IT industry. People change the battery and it fails again in a very short time (
I'd say power grid is quite stable, definitely there are no long outages, so going flat is not really an issue. Power drawn from it is not big either, usually less than 100W, so maybe it is the lower quality battery or the Eaton power management itself. But your point is indeed interesting. How much time can your 10yo batteries bridge compared to a new one?
What was the symptom of the failing battery? Did you have any warning message or beep?
no warning, just noticed that it can barely run the devices without incoming power
Unless you get something really expensive like a lithium battery that pretends to be a lead-acid to the charge controller you won't be able to fit a larger capacity battery, 9Ah is the limit for this size.
0:22 about your lenovo NAS to co-op with this UPS. you can try NUT utilitiy, it should help.
I used an old rpi 2 to transfer this eaton UPS to full network UPS, for sure, your lenovo NAS will also handle this.
Techno Tim made full tutorial on YT - Network UPS Tools (NUT Server) Ultimate Guide
Thanks! I'll look into it!
I have a situation with mine, 1500I, where even after unplugging everything and turning the UPS off, it still beeps (around every 2 seconds) with the fan running. Is it safe to replace batteries while it's in that state?
that sounds weird, man! I cannot responsibly answer your question though, there are high voltage cables inside.
@@tomscrapwood7883 Thanks still for taking the time to answer. I was advised that it's safe to disconnect the battery even while it's in that state. After doing so and replacing the batteries, the UPS remained off. Once I turned it back on, the beeping stopped. In case this is of help to anyone else.
Was wondering if you could replace the old battery with a higher volt/watt battery, or is it only for that 850v battery?
as I see size of the battery varies with capacity, so most probably they will not fit
How long is the screwdriver and what bit it is? PZ? Thanks
12,5cm and a PZ2 head
@@tomscrapwood7883 Thank you!