Forum Discussion
full_mosey
Jul 20, 2016Explorer
I have 2 x 135AH Powerware telco pulls. specs PDF file
I read the specs before buying and I failed to see anything special.
The batteries are in service 100% and are used to run 2 x Dometic 12V compressor fridge/freezers.
They are being charged with 170W solar and a MS TS-45 PWM controller. A Magnum 1012 100W/50A inverter/charger is used with a Yammi 2k inverter genny or shore power. Both chargers are set to a profile quite like the Lifeline Voltage specs. Both chargers use temp comp cables. As I write this, it is 110F in the van and both chargers are showing float. The neg charge/load battery post with both temp sensors is 92F. A Turnigy Voltmeter is showing 13.16V.
The Powerware specs do tend to be slanted towards UPS. It is easy to calculate a bank size, for inverter use, due to the Constant-Wattage table; something rarely seen. Usually all you get is a useless constant-current table/specs. A designer should be able to meet any Service Level Agreement.
I was told these batteries were 5yo when I got them last Fall. I paid $95ea. I load tested them then, which I explained in detail previously, and they have performed very well since.
HTH;
John
I read the specs before buying and I failed to see anything special.
The batteries are in service 100% and are used to run 2 x Dometic 12V compressor fridge/freezers.
They are being charged with 170W solar and a MS TS-45 PWM controller. A Magnum 1012 100W/50A inverter/charger is used with a Yammi 2k inverter genny or shore power. Both chargers are set to a profile quite like the Lifeline Voltage specs. Both chargers use temp comp cables. As I write this, it is 110F in the van and both chargers are showing float. The neg charge/load battery post with both temp sensors is 92F. A Turnigy Voltmeter is showing 13.16V.
The Powerware specs do tend to be slanted towards UPS. It is easy to calculate a bank size, for inverter use, due to the Constant-Wattage table; something rarely seen. Usually all you get is a useless constant-current table/specs. A designer should be able to meet any Service Level Agreement.
I was told these batteries were 5yo when I got them last Fall. I paid $95ea. I load tested them then, which I explained in detail previously, and they have performed very well since.
HTH;
John
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