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Power is lost, which is measurable. There won't be any lost voltage but there is current lost through resistance (dissipated as heat primarily). There is an apparent loss, in other words the voltage drops but the equations will balance when you account for everything including the losses into...

Particularly important with AGM since you can't put the magic back in if you overheat and cause them to vent. They are kind of the Goldilocks of lead acid batteries. This voltage is too low so you undercharge, this voltage is too high so you loose electrolyte.

@Gs WK2, Kirchhoff's and Ohm's laws here require you to introduce dependent sources and superposition to get Thevenin equivalents. IOW a solar panel Voc and Isc yield an equivalent source voltage and resistance. The same would be true of a battery, dependent source and load simultaneously...

The field winding polarity is flipped through the solenoids or contactor and the armature winding is energized the same polarity regardless. Both windings return large current through the lug on the bottom of the motor back to the battery. If that has changed recently or isn't industry...

I have a Warn XD9000 and there's a lug on the motor for the return/negative/ground supply cable back to the battery. So yes, your vehicle chassis negatives may find a sneak path back to the battery through the body or frame through the bumper, motor and winch housing. It's not a solid path for...

There is evidence to believe the claims about carbon foam used in lead acid. Chemically the reaction is working like any other AGM. They AFAIK are using the foam to increase the porosity of the grid plates, which is a legitimate improvement. Surface area and porosity are critical to lead acid...

A photo may help explain what you're talking about when you say replace the 4-solenoid package with an enclosed contactor. There are variations on the exact brand, model and connections but the essential part is they are sealed unit that can completely substitute functionally for the original...

Sometimes you'll see this module pop up on Amazon or eBay from various vendors. It's handy and might save you a bunch of time since they are usually around $10. They have an HC-06 BT module on top and an STMico ST3232 (or sometimes a knock-off SP3232) on the back. The ones I've seen are...

I figure the only mobile Igate/digipeater that get the full A-OK are sitting in the sky and they for the most part aren't on the 144.390 network. http://aprs.org/astars.html

@kidphc - excellent reply, we are completely in sync on the subject!

Gotcha. A fill-in Igate/digipeater makes sense. I just like to ask because putting up random APRS-IS gateways usually has the opposite effect as the ham intends and leads to increasing duplicates and dropped packets in an area where there's already coverage. Whatever you do the Igate needs to...

For what purpose do you want a rover APRS Igate?

If you checked and replaced the fuse I'd suspect a connector has probably come loose on the back of the outlet or you have a wire that's broken in the harness somewhere. Could also be the outlet itself, maybe the stamped guts have fatigued and aren't making solid contact with the cigarette plug...

Iron Man is a long time Australian brand, no reason to worry. They are just not as well known in the U.S.A. as ARB is all. https://ironman4x4america.com/lexus-gx460-2010-13-toyota-prado-150-commercial-deluxe-bull-bar/ The install directions appear to be for the Prado so I assume you'd have to...

What you're talking about is implicit in the battery thermal management algorithms for EVs and stand-by systems. The reason I suspect it's not a standard feature here is it does consume quite a bit of energy and it's not really critical if all you're doing is discharging. In an EV the...

You could probably just tell from the data sheet. For example a randomly selected 1868130 has a max charging temperature of +45°C and max discharging temp of +60°C. http://cebabattery.com/wp-content/uploads/2018/01/LiFePO4-1868130-3.2V-10Ah-Battery_DATASHEET.pdf So depends on how they are...

Not to clog up the thread, but just to give you something to think about if you're replacing a 6' bed, since I was chin scratching over it, too (I have an Access Cab). It'll come up a little short in front I suspect. There's more bed in front of the rear axle on a 6' bed than than the 5'...

I have tried Manual Position and that does the job, but it still dumps out a packet when you start and being manual position it'll either use the default or the last one it has. So your track gets a random location. It's of course just an annoyance since the next beacon gets your location...

LOL, I think Kenwood should build a TM-D710 with DMR. That is something I would buy.

So APRSdroid isn't RX-only you're just dumping its TX attempts in the bit bucket. What I've done is set Location Source to Periodic with 999 minutes between beacons. It still pukes out one packet when I hit Start Tracking but doesn't attempt one again for any practical length of time.