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Re: Wiring question, about 24 volt and "bridges"
It sounds like you just got the gauge itself. Cal. You need a properly rated shunt to hook it up. The gauge needs a particular mV rating, and needs to be rated well above the amperage you expect to
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It sounds like you just got the gauge itself. Cal. You need a properly rated shunt to hook it up. The gauge needs a particular mV rating, and needs to be rated well above the amperage you expect to
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By
John Kohnen
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#53929
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Re: Batteries again, Upgrade
I'll bet that 88 A/H is at the 5 hr. rate, not the usual, 20 hr. rate. 88 A/H would be pretty feeble for a group 27 deep cycle, but about right at the 5 hr. rate. I think I've seen a group 27 so
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I'll bet that 88 A/H is at the 5 hr. rate, not the usual, 20 hr. rate. 88 A/H would be pretty feeble for a group 27 deep cycle, but about right at the 5 hr. rate. I think I've seen a group 27 so
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By
John Kohnen
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#53928
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Re: Wiring question, about 24 volt and "bridges"
I just spent today mainly staring at wiring I did maybe 4 years ago. Not much fun, but I did get some stuff redone, other stuff is maybe for later. The results matter, but all works better if not
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I just spent today mainly staring at wiring I did maybe 4 years ago. Not much fun, but I did get some stuff redone, other stuff is maybe for later. The results matter, but all works better if not
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By
Electri-Cal
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#53927
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Re: Wiring question, about 24 volt and "bridges"
Good comments Myles. I have read many comments about the problems with Link and other similar.
I have used the Victron BMV-702 for 5 years or so without any problems, good readings and accuracy. The
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Good comments Myles. I have read many comments about the problems with Link and other similar.
I have used the Victron BMV-702 for 5 years or so without any problems, good readings and accuracy. The
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By
johnacord
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#53926
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Re: Wiring question, about 24 volt and "bridges"
Ditto.
If this round gauge is a descendant of the Link-10, which was a descendant of the E-Meter (designed/built in Arlington, Wa.), there’s definitely a need for an external shunt. Worse, to the
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Ditto.
If this round gauge is a descendant of the Link-10, which was a descendant of the E-Meter (designed/built in Arlington, Wa.), there’s definitely a need for an external shunt. Worse, to the
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By
Myles Twete
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#53925
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Re: Wiring question, about 24 volt and "bridges"
Hey Cal,
Can you see us images and a website where we can look up the Guage in question other wise this is really hard to give input on.
I can say that current is usually measured via voltage drop
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Hey Cal,
Can you see us images and a website where we can look up the Guage in question other wise this is really hard to give input on.
I can say that current is usually measured via voltage drop
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By
Jove Lachman-Curl
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#53924
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Wiring question, about 24 volt and "bridges"
Probably Myles Tweete has this, but others may wonder about this. I just got in a new round gauge for Surprise. A dual amp and volt type, that should show all I need in a small package. The info
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Probably Myles Tweete has this, but others may wonder about this. I just got in a new round gauge for Surprise. A dual amp and volt type, that should show all I need in a small package. The info
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By
Electri-Cal
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#53923
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Re: Batteries again, Upgrade
....dig deep (sigh) enough and you can find the info! The Interstate Group 27 is rated at 88AH. So the run times a bit less, 96min/225min.
Using AGM instead of flooded cell will give you more. My
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....dig deep (sigh) enough and you can find the info! The Interstate Group 27 is rated at 88AH. So the run times a bit less, 96min/225min.
Using AGM instead of flooded cell will give you more. My
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By
johnacord
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#53922
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Re: September Columbia Cruise
I stopped by Fred's Marina yesterday to ask about fishing crowds and slips for the week of the cruise. A fisherman said that fall salmon season on the Columbia was something like three days this
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I stopped by Fred's Marina yesterday to ask about fishing crowds and slips for the week of the cruise. A fisherman said that fall salmon season on the Columbia was something like three days this
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By
Mark Neuhaus
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#53921
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Re: Batteries again, Upgrade
John,
Perhaps your spreadsheet needs a bit of adjustment.
Interstate does not give an AH rating for that battery, but in general one might expect a good group 27 to be 100AH (20 Hr rate). A Peukert
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John,
Perhaps your spreadsheet needs a bit of adjustment.
Interstate does not give an AH rating for that battery, but in general one might expect a good group 27 to be 100AH (20 Hr rate). A Peukert
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By
johnacord
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#53920
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Re: Batteries again, Upgrade
I did a little fooling around in a spreadsheet with Peukert's Law. If I calculated correctly, using the 25 amp rating of Interstate group 27 deep cycle batteries, and a, probably optimistic, Peukert
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I did a little fooling around in a spreadsheet with Peukert's Law. If I calculated correctly, using the 25 amp rating of Interstate group 27 deep cycle batteries, and a, probably optimistic, Peukert
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By
John Kohnen
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#53919
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Re: Batteries again, Upgrade
Thanks, Myles! I think I now understand why parallel connections are riskier than serial ones. Sounds like fuses between batteries, or battery banks, hooked up in parallel are a Good Idea. Cheaper
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Thanks, Myles! I think I now understand why parallel connections are riskier than serial ones. Sounds like fuses between batteries, or battery banks, hooked up in parallel are a Good Idea. Cheaper
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By
John Kohnen
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#53918
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Re: Batteries again, Upgrade
Wow! Tons of great input on this. The interstate M series seem to be a slight improvement over 27 standard builds. Too bad I can't just plug a pair into the other battery pack, due to different
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Wow! Tons of great input on this. The interstate M series seem to be a slight improvement over 27 standard builds. Too bad I can't just plug a pair into the other battery pack, due to different
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By
Electri-Cal
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#53917
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Re: Batteries again, Upgrade
Huh? Wha..?
Rich
By
Richard Green
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#53916
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Re: Batteries again, Upgrade
I’ve had a lot of experience paralleling batteries on an electric boat---arguably as much or more than anyone else.
I converted the outboard on The Reach Of Tide to electric in 2003. Initially, it
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I’ve had a lot of experience paralleling batteries on an electric boat---arguably as much or more than anyone else.
I converted the outboard on The Reach Of Tide to electric in 2003. Initially, it
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By
Myles Twete
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#53915
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Re: Batteries again, Upgrade
John,
Yes, "runaway current from a strong battery to a weak one" is a real concern. If one battery shorts a cell then the stronger battery will try to equalize the voltage with a large current
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John,
Yes, "runaway current from a strong battery to a weak one" is a real concern. If one battery shorts a cell then the stronger battery will try to equalize the voltage with a large current
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By
Randy Torgerson
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#53914
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Re: Batteries again, Upgrade
Late in life, Phil Bolger got married. His bride is an engineer, and a German one at that. <g> Together they designed and built an electric launch, Lily. Lily had an easy to build flat-bottom skiff
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Late in life, Phil Bolger got married. His bride is an engineer, and a German one at that. <g> Together they designed and built an electric launch, Lily. Lily had an easy to build flat-bottom skiff
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By
John Kohnen
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#53913
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Re: Batteries again, Upgrade
Oops! Of course I meant: "The cheapest way to get more range out of the 12 volt batteries you've
On 8/28/2020 3:07 PM, John Kohnen wrote:
--
This email has been checked for viruses by
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Oops! Of course I meant: "The cheapest way to get more range out of the 12 volt batteries you've
On 8/28/2020 3:07 PM, John Kohnen wrote:
--
This email has been checked for viruses by
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By
John Kohnen
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#53912
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Re: Batteries again, Upgrade
The M-27HDC. Four pounds heavier than the SRM-27, same 160 min. rating at 25 amps. About $9 cheaper than the SRM-27. More lead, lower price? Unfortunately, Interstate's specs don't say what's
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The M-27HDC. Four pounds heavier than the SRM-27, same 160 min. rating at 25 amps. About $9 cheaper than the SRM-27. More lead, lower price? Unfortunately, Interstate's specs don't say what's
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By
John Kohnen
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#53911
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Re: Batteries again, Upgrade
Four 6 volt batteries hooked up in series, a simple on/off battery switch. What's simpler?
The cheapest way to get more range out of the 12 volt batteries you've got is to wire the two battery banks
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Four 6 volt batteries hooked up in series, a simple on/off battery switch. What's simpler?
The cheapest way to get more range out of the 12 volt batteries you've got is to wire the two battery banks
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By
John Kohnen
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#53910
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