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Showing results 1 to 25 of 500
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Search: Posts Made By: btrayfors
Forum: Electrical Systems 1 Week Ago
Replies: 3
Views: 253
Posted By btrayfors
Re: Battery charge vs. voltage under load

Yep. That would tend to indicate that your 6-year old batteries have lost considerable capacity.

Only way to be sure is to first make sure the battery state-of-charge is 100%, then do a complete...
Forum: Vessels Lost, Missing, or in Danger 2 Weeks Ago
Replies: 11
Views: 1,115
Posted By btrayfors
Re: s/v Seaquel Rescue.

Following is from Sally aboard Seaquel, anchored this morning off Boqueron PR. It explains the emergency and the head injury, as well as the trip to PR afterwards.

Dear Friends,
The short...
Forum: Vessels Lost, Missing, or in Danger 2 Weeks Ago
Replies: 11
Views: 1,115
Posted By btrayfors
Re: s/v Seaquel Rescue.

Seaquel bypassed Mayaguez last nite and continued to Boqueron where they anchored just after 2AM.

Don't know the full story yet, but no doubt it will come out in a day or two.

Bill
Forum: Vessels Lost, Missing, or in Danger 2 Weeks Ago
Replies: 11
Views: 1,115
Posted By btrayfors
Re: s/v Seaquel Rescue.

Update 8:50PM Thursday. Sally, not Sandy, is a General Class licensee (KA3RUJ) and a friend. Andy, her husband and captain, is also a licensed General Class amateur (KC4VOA). They both DO know...
Forum: Electrical Systems 2 Weeks Ago
Replies: 22
Views: 691
Posted By btrayfors
Re: 125/250v shorepower question

Exactly!

Don't know where this 30A business came from, unless the responders above were thinking about a splitter. These are in common use and have 30A connectors on each "leg", but they depend...
Forum: Electronics 3 Weeks Ago
Replies: 11
Views: 533
Posted By btrayfors
Re: Lookin' for a new HANDHELD VHF

".. Now, if they could only address the price issue......"

You gotta be kidding! The Standard HX-870 @ $210 is a STEAL!!

Gonna replace my HX-851 soon.

Bill
Forum: Electronics 3 Weeks Ago
Replies: 2
Views: 246
Posted By btrayfors
Re: Wanted: Datamarine depth sounder display

There is an S200DL display on eBay right now.

Bill
Forum: Electric/Hybrid 3 Weeks Ago
Replies: 39
Views: 1,113
Posted By btrayfors
Re: Battery Assistance

You really need to rethink this, and think entire battery & charging systems, not just the batteries themselves.

It is folly IMHO to try to take shortcuts and "save" one or more batteries from...
Forum: Electrical Systems 4 Weeks Ago
Replies: 27
Views: 704
Posted By btrayfors
Re: How to removing ammeter

Yeah, you can. But why not take the opportunity to renew the cable and make sure it's the proper size to get the most out of your charging setup?

Bill
Forum: Electrical Systems 4 Weeks Ago
Replies: 65
Views: 1,835
Posted By btrayfors
Re: Charging Woes

Yes....a fuse or breaker between the regulator and the batteries.

You can effectively turn off solar panels without doing damage to them (unlike an alternator). Thus, the sequence when...
Forum: Electrical Systems 4 Weeks Ago
Replies: 65
Views: 1,835
Posted By btrayfors
Re: Charging Woes

Those appear to be 10A breakers to cut the solar panels output before the regulator. This is good practice; there should be a way to cut off the panels BEFORE the regulator, as well as a way to cut...
Forum: Electrical Systems 03-31-2015
Replies: 16
Views: 559
Posted By btrayfors
Re: Does everything need to be on a switch?

No, it doesn't have to be on a switch, though that is often convenient.

However, it does have to be on a fuse or breaker, preferably 15A.

Piggybacking on other circuits with their own 15A...
Forum: Electrical Systems 03-28-2015
Replies: 15
Views: 618
Posted By btrayfors
Re: How to charge a SEALED lead acid battery?

At 13.7VDC you're likely not getting a full charge.

The trick with ANY battery, sealed or not, is to charge and float at the recommended voltages.

For gelled batteries, this is often 14.2VDC...
Forum: Electrical Systems 03-28-2015
Replies: 15
Views: 618
Posted By btrayfors
Re: How to charge a SEALED lead acid battery?

Yes, there are small solar controllers which would do the trick for you. They can be set for type of battery.

Genasun makes a line of such products...they are popular and well made. The little...
Forum: Electrical Systems 03-14-2015
Replies: 10
Views: 614
Posted By btrayfors
Re: Dueling Charging Systems; Solar, Engine, Battery Charger

Melissa,

No, equalization is just as I described. BTW, the NORMAL absorption voltage for most flooded batteries is 14.4VDC or above. Trojan calls for 14.8-15.0 for their popular T-105s. The...
Forum: Electrical Systems 03-14-2015
Replies: 10
Views: 614
Posted By btrayfors
Re: Dueling Charging Systems; Solar, Engine, Battery Charger

Melissa,

I'm sure MaineSail will show up to add to this.

It is quite common for two or more charging sources to "fight" with one another, i.e., as you've correctly guessed a charge source comes...
Forum: Electronics 03-13-2015
Replies: 11
Views: 533
Posted By btrayfors
Re: Lookin' for a new HANDHELD VHF

The new STANDARD HORIZON HX870 Floating Handheld VHF Radio with GPS looks great.

Bill
WA6CCA
Forum: Electrical Systems 03-11-2015
Replies: 69
Views: 2,530
Posted By btrayfors
Re: Recommendations for Battery Monitor

A volt meter CANNOT MEASURE BATTERY CAPACITY.

Sorry for the caps, but state-of-charge (SOC) -- which voltage can pretty well approximate in a resting battery -- and capacity are totally different...
Forum: Electrical Systems 03-11-2015
Replies: 69
Views: 2,530
Posted By btrayfors
Re: Recommendations for Battery Monitor

Yep, that could get you pretty close, assuming that the SmartGuage is a quite accurate estimate of SOC and a good shunt-based amps counter system (Victron, other) is an accurate counter of amps...
Forum: Electrical Systems 03-11-2015
Replies: 69
Views: 2,530
Posted By btrayfors
Re: Recommendations for Battery Monitor

Not quite what he said.

MaineSail said,

"If your banks capacity drops to 70%, as in the above photos, the SG will tell you when you are at 50% of that aged capacity."

Yes, but it won't...
Forum: Electrical Systems 03-11-2015
Replies: 69
Views: 2,530
Posted By btrayfors
Re: Recommendations for Battery Monitor

Not really. If you know your boat, you can get close enough from just a voltage reading even with a "normal load" on the house batteries.

Example: When I wake up in the morning to turn off the...
Forum: Electrical Systems 03-10-2015
Replies: 69
Views: 2,530
Posted By btrayfors
Re: Recommendations for Battery Monitor

Sorry to throw a monkey wrench in here amongst all the learned facts and opinions on battery monitors.

If you truly are an experienced user and you know your boat well, a simple digital voltmeter...
Forum: Gear & Maintenance 03-03-2015
Replies: 15
Views: 690
Posted By btrayfors
Re: Float switch

Over the past 30 years on two different boats -- as well as on dozens of client boats -- I've seen, installed, serviced, and replaced just about every switch out there.

Here's what I've learned:
...
Forum: Electrical Systems 03-01-2015
Replies: 65
Views: 1,835
Posted By btrayfors
Re: Charging Woes

Forget the Mastevolt. Read MaineSail's posts on battery monitors.

Why don't you take some measurements with a good multimeter, THEN ask your questions?

All we have to go on now is, "help...my...
Forum: Electrical Systems 02-22-2015
Replies: 5
Views: 396
Posted By btrayfors
Re: Just have a voltmeter

Dave,

I just use a voltmeter most of the time, too. It tells me all I need know, mainly because I know my boat well after 25 years.

For several years I've been in the business of designing,...
Showing results 1 to 25 of 500

 

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