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Are All Batteries Created Equal? (Does Size Matter?)
Anyone have any experience with the 12-volt PowerSonic PSH-12100 10.5
AH sealed lead-acid battery? It's the same "footprint" (length and width) as the 7.5 AH batteries most of us use but about 2/3 inch (17 mm) taller. PowerSonic rates its own PSH-1280--the size most of us use--at 8.5 AH which is already 1 AH more than most similar batteries, a 13% increase for this brand. Then they spec 10.5 AH for the taller battery--a 24% increase--with approx. 18% increases in volume and weight. I know battery capacity isn't strictly proportional to size (I assume there are some fixed components to each). And there are differences in design among manufacturers. But does anyone have any first-hand experience with the taller battery? Or know whether the upgraded capacity is more or less likely to be marketing hype? Looking at the specs for both, it doesn't appear that PowerSonic is playing games with the numbers to favor the taller battery. Another higher-capacity alternative--a battery with the same length and height but wider--would require modifying the battery box and associated mounting in my ASW 24. With more electronics in the cockpit every year, I'm looking for easy ways to add electrical energy with no or only minor glider surgery. Tim Mara has both types in his online catalog, by the way (this is a non-commercial, informational message intended for those who aren't familiar with the batteries typically used in gliders). Chip Bearden ASW 24 "JB" |
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Chip,
I have a couple on order right now... Will let you know how it goes. www.extremebatteries.com had them for $19.85 each. Larry " wrote in message : Anyone have any experience with the 12-volt PowerSonic PSH-12100 10.5 AH sealed lead-acid battery? It's the same "footprint" (length and width) as the 7.5 AH batteries most of us use but about 2/3 inch (17 mm) taller. PowerSonic rates its own PSH-1280--the size most of us use--at 8.5 AH which is already 1 AH more than most similar batteries, a 13% increase for this brand. Then they spec 10.5 AH for the taller battery--a 24% increase--with approx. 18% increases in volume and weight. I know battery capacity isn't strictly proportional to size (I assume there are some fixed components to each). And there are differences in design among manufacturers. But does anyone have any first-hand experience with the taller battery? Or know whether the upgraded capacity is more or less likely to be marketing hype? Looking at the specs for both, it doesn't appear that PowerSonic is playing games with the numbers to favor the taller battery. Another higher-capacity alternative--a battery with the same length and height but wider--would require modifying the battery box and associated mounting in my ASW 24. With more electronics in the cockpit every year, I'm looking for easy ways to add electrical energy with no or only minor glider surgery. Tim Mara has both types in his online catalog, by the way (this is a non-commercial, informational message intended for those who aren't familiar with the batteries typically used in gliders). Chip Bearden ASW 24 "JB" |
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I can't testify as to the 10.5 AH powersonic, but I can sing the praises
of their 8.5 AH that is exactly the same size as the old 7/7.5 AH batteries that many gliders use. The two battery holders of my Ventus C fit these batteries exactly. I have made a 6 hour on one of these batteries with radio, transponder, encoder, 302 and Ipaq and did not have to switch to the backup. Bob 01-- Zero One wrote: Chip, I have a couple on order right now... Will let you know how it goes. www.extremebatteries.com had them for $19.85 each. Larry " wrote in message : Anyone have any experience with the 12-volt PowerSonic PSH-12100 10.5 AH sealed lead-acid battery? It's the same "footprint" (length and width) as the 7.5 AH batteries most of us use but about 2/3 inch (17 mm) taller. PowerSonic rates its own PSH-1280--the size most of us use--at 8.5 AH which is already 1 AH more than most similar batteries, a 13% increase for this brand. Then they spec 10.5 AH for the taller battery--a 24% increase--with approx. 18% increases in volume and weight. I know battery capacity isn't strictly proportional to size (I assume there are some fixed components to each). And there are differences in design among manufacturers. But does anyone have any first-hand experience with the taller battery? Or know whether the upgraded capacity is more or less likely to be marketing hype? Looking at the specs for both, it doesn't appear that PowerSonic is playing games with the numbers to favor the taller battery. Another higher-capacity alternative--a battery with the same length and height but wider--would require modifying the battery box and associated mounting in my ASW 24. With more electronics in the cockpit every year, I'm looking for easy ways to add electrical energy with no or only minor glider surgery. Tim Mara has both types in his online catalog, by the way (this is a non-commercial, informational message intended for those who aren't familiar with the batteries typically used in gliders). Chip Bearden ASW 24 "JB" |
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