This article just appeared in the Dogwatch, the online newsletter associated with Good Old Boat magazine.
https://audioseastories.com/fs-may19/
I am curious about the approach and limitations. There is no mention of the temperature, how the voltmeter was connected, or what voltmeter was used. Additionally, the accompanying chart is from Trojan, yet the batteries are Ray-O-Vacs, which may or may not reflect the Ray-O-Vacs actual voltage profile.
The traditional advice has always been to develop an energy budget and use that to estimate daily amphour needs. Then use a standardized 20 hour test to determine the batteries capacity. The math is then simple, compare the needs to the capacity.
I can see where conducting a "real life" test on a boat may be easier than hauling the batteries home to run the standardized test.
Wouldn't it be easier to just install a Balmar SG or the new Smart Gauge?
https://audioseastories.com/fs-may19/
I am curious about the approach and limitations. There is no mention of the temperature, how the voltmeter was connected, or what voltmeter was used. Additionally, the accompanying chart is from Trojan, yet the batteries are Ray-O-Vacs, which may or may not reflect the Ray-O-Vacs actual voltage profile.
The traditional advice has always been to develop an energy budget and use that to estimate daily amphour needs. Then use a standardized 20 hour test to determine the batteries capacity. The math is then simple, compare the needs to the capacity.
I can see where conducting a "real life" test on a boat may be easier than hauling the batteries home to run the standardized test.
Wouldn't it be easier to just install a Balmar SG or the new Smart Gauge?