Sybaris
Member
Willow3,
Yes I am getting more impressed by the minute, and reading a lot more on the canal boat forum which seems to have quite a few very knowledgeable members I think I am starting to understand how the SoC (state of charge) is calculated in the smartgauge and it all makes good sense. In brief it is based on testing the voltage and loads with time delays. He also says that it is more precise during discharge than during charge, but the gauge is always connected and keeps correcting itself so that doesn't matter in the long run.
Interestingly one thread called "Buying a Multimeter, What sort should I get?" (which I started to read because I want to get a good multimeter) lead to discussions in which Gibbo reveals some of the logic. I think this link might get you there
http://www.canalworld.net/forums/index.php?showtopic=7218&hl=smartgauge&st=120
Incidentally Gibbo has also claims to have worked on the design of several Ah gauges and I am convinced he knows his stuff. Reading all the information it is now totally clear to me how an Ah gauge can never be very reliable, especially if you often discharge your batteries down to 50%. The only way to be safe then is to synchronize the gauge every time you know for sure you have made a completely full recharge.
This also gives you an idea of how to calculate your SoC which you can do yourself with a watch and a multimeter. http://www.attfield.dircon.co.uk/info-indx.html#Testing
Interesting stuff, and I know what I am buying next.
Cheers,
Per
Yes I am getting more impressed by the minute, and reading a lot more on the canal boat forum which seems to have quite a few very knowledgeable members I think I am starting to understand how the SoC (state of charge) is calculated in the smartgauge and it all makes good sense. In brief it is based on testing the voltage and loads with time delays. He also says that it is more precise during discharge than during charge, but the gauge is always connected and keeps correcting itself so that doesn't matter in the long run.
Interestingly one thread called "Buying a Multimeter, What sort should I get?" (which I started to read because I want to get a good multimeter) lead to discussions in which Gibbo reveals some of the logic. I think this link might get you there
http://www.canalworld.net/forums/index.php?showtopic=7218&hl=smartgauge&st=120
Incidentally Gibbo has also claims to have worked on the design of several Ah gauges and I am convinced he knows his stuff. Reading all the information it is now totally clear to me how an Ah gauge can never be very reliable, especially if you often discharge your batteries down to 50%. The only way to be safe then is to synchronize the gauge every time you know for sure you have made a completely full recharge.
This also gives you an idea of how to calculate your SoC which you can do yourself with a watch and a multimeter. http://www.attfield.dircon.co.uk/info-indx.html#Testing
Interesting stuff, and I know what I am buying next.
Cheers,
Per