Killer Amps
I want to pull ten amps out of a little 35 ah battery for one hour and then fully recharge. Will this heavy draw destroy the battery? I know it is a small battery.
Forum Discussion
If the 100 watt load is run off an inverter, the minimum voltage the inverter will accept will be the end of your test.
If it is a 100 watt load, say like on a 12vDC heating pad, well 100 watts at 12.8v will, at 11.8v, be around 70 watts.
I suspect it is a 35 AH AGM like these:
If it newish and still healthy, I say it will work.
Note the 'recommended' 10.5 amp max charge rate.
How many cycles will it work is in my opinion, the real unknown
The following peukert calculator, using a PK number of 1.2, on a 35 Ah battery with a 10 amp load says the battery capacity is reduced to 22.08 amp hours.
http://www.csgnetwork.com/batterylifecalc.html
This is the PDF spec sheet for a UPG 35Ah agm
https://www.batterystuff.com/files/d5722.pdf
It says the 5 hour rate is 29.75AH
It says the 1 hour rate is 21 AH
Looks like it will work and how many cycles it can do so depends on how well you recharge it.
Absorption is listed at 14.5 to 14.9v
Seek and hold this voltage until amps taper to 0.175 amps.
Let us know how it works, and for how long.
If it is a 100 watt load, say like on a 12vDC heating pad, well 100 watts at 12.8v will, at 11.8v, be around 70 watts.
I suspect it is a 35 AH AGM like these:
If it newish and still healthy, I say it will work.
Note the 'recommended' 10.5 amp max charge rate.
How many cycles will it work is in my opinion, the real unknown
The following peukert calculator, using a PK number of 1.2, on a 35 Ah battery with a 10 amp load says the battery capacity is reduced to 22.08 amp hours.
http://www.csgnetwork.com/batterylifecalc.html
This is the PDF spec sheet for a UPG 35Ah agm
https://www.batterystuff.com/files/d5722.pdf
It says the 5 hour rate is 29.75AH
It says the 1 hour rate is 21 AH
Looks like it will work and how many cycles it can do so depends on how well you recharge it.
Absorption is listed at 14.5 to 14.9v
Seek and hold this voltage until amps taper to 0.175 amps.
Let us know how it works, and for how long.
