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  1. george_tlc

    Dud battery, or just not enough sunlight?

    ^ We just need people to use the units correctly AND consistently. The ARB can draw 5A and in an hour of typical use (where it runs 5 minute on and 15 minutes off) 5A x 15/60 = 1.25AH cheers, george.
  2. george_tlc

    Can you take drinking water outside in the bottle holder?

    The only issue is long term storage - algae can grow with sunlight in some water tanks - but that's more an issue with rainwater tanks due to spores from the collection process. For a few weeks (and I'd assume you'd be using the water during that time and re-filling), it's a total non-issue...
  3. george_tlc

    Dud battery, or just not enough sunlight?

    My point is that whatever charger comes with a panel is more than likely not what it seems. There's a reason it's thrown in for essentially $0. A real MPPT charger has quite a bit of electronics, well beyond 'free'. And yes, I've been to Shenzhen multiple times for products that we manufacture...
  4. george_tlc

    Dud battery, or just not enough sunlight?

    Cheap "MPPT" that came with the panel.... Well, if it's the typical cheap from China and came with the panel, then it's quite likely not an MPPT, regardless of what they quote. Most are PWM and they put an inductor in there to pretend it's MPPT. So, I'd be looking carefully at that charge...
  5. george_tlc

    Dud battery, or just not enough sunlight?

    ^ What brand/model MPPT controller do you have. I use a Victron unit and have my fridge on the load side. No issue, voltage drop is minimal (more drop in the wiring). I like it on the load side since the Victron shows how energy usage by the load and of course energy coming from the solar. Let's...
  6. george_tlc

    Is getting 12v from a 24v 70 series really this easy?

    ^ 24V everything, relays, lights, etc. The relay coils (the thing that activates the relay contacts) need to be 24V since they will be activated with 24V signals. Converting 24V to 12V for lighting isn't really efficient... Just get 24V bulbs or as someone mentioned, move to LED lighting that...
  7. george_tlc

    Is getting 12v from a 24v 70 series really this easy?

    To OP. Your friend is giving bad guidance. Do NOT draw current from only one battery in a 24V series connected system. Sure way to kill batteries and to cause the low battery (the '12V one') to undercharge while the high battery overcharges and boils. Get 24V bulbs for your lights. There are...
  8. george_tlc

    Dud battery, or just not enough sunlight?

    Put it on a real charger (wall plugged) and monitor the voltage across the battery as it charges fully. Then load test the battery. Though it does sound like a dropped cell. cheers, george.
  9. george_tlc

    Charging issues not the battery or alternator?

    I wouldn't trust an "alternator is good" / "alternator is bad" test done at an autoparts place. Put a multimeter (on DC volts) ground probe on the engine block (scratch to make good electrical contact) and the positive probe directly on the Hot output of the alternator with the engine running...
  10. george_tlc

    Has anyone used a getwiredusa 500a circuit breaker on winch

    Generic China 'stuff'. I wouldn't trust it with winching loads. Can find the same product on aliexpress - so doesn't instill faith. Obviously targets the big audio type nuts. You're not likely to find a (reputable brand) breaker that can deal with 500A on a 12V circuit. Some folk just use a...
  11. george_tlc

    Arduino powered glow plug controller

    R3/R2 divide the alternator L voltage by about 3, so 14V to approx 4.6V (the uC runs at 5V nominal). C4 helps to smooth/reduce any glitches and D2 clamps any spikes (above 5V or below GND) that may be on the L signal after going throught the R3/R2 divider. The circuitry also protects against any...
  12. george_tlc

    Arduino powered glow plug controller

    Being an EE, designing stuff like this is a non-issue. I have all the tools for schematics, PCB layout, programming, test, blah blah :) 12V is handled by an automotive rated regulator (the little bit of stuff at the top of the schematic) that creates 5V for the uC circuitry. I don't use the...
  13. george_tlc

    Arduino powered glow plug controller

    Here's a pic of my glow timer for an mq patrol. It was designed to replace the electronics (form factor, pinout equivalent) inside the OEM glow timer 'box'. Looks a little 'wet', but that's just silicone based conformal coating I applied since the box lives in the engine bay. Schematics...
  14. george_tlc

    Arduino powered glow plug controller

    Be careful with the glow solenoid drive and connections. There are very large currents going into the solenoid coil that can back EMF large spikes to the relay board that can work their way into the drive transistor that controls the smaller relay. Ground connections are critical to ensure...
  15. george_tlc

    Arduino powered glow plug controller

    Make sure to put some protection circuitry on the ADC input that connects to the temp sensor. Also be sure that the power supply for the arduino is automotive rated, i.e. can handle reverse voltage (in case of battery hookup boo boo) and also able to handle at least 40V (preferably 60V) load...
  16. george_tlc

    making hole in outer fender panel for snorkel - best method ?

    http://www.george4wd.taskled.com/snorkel.html Did several the same day. cheers, george.
  17. george_tlc

    Minimizing breakdown time for camp

    Based on what I wrote previously in this thread. Here's my typical camp. Nearly 2 weeks camping out the back of our 80. On my own, so a platform on the right (pulled out rear passenger side seat) and thermarest/sleeping bag on the platform. Super comfy and ready to go every night, nothing to...
  18. george_tlc

    Sand dune flag bracket/mount. What is your setup?

    Yep, if you've got a roobar then that works well. The ARB on my 80 has an antenna mount and that hole is perfect for the sand flag I have, bolts right in there. cheers, george.
  19. george_tlc

    Minimizing breakdown time for camp

    It depends on the goal of your camping trips. If it is fine cuisine and sitting around a campsite with all the conveniences, then setup/breakdown will take considerable time. I take a folding camp chair and use the tailgate as my 'table' for cooking. Single burner stove works just fine, though...
  20. george_tlc

    Resistors for small incandescent lighting

    If the bulbs are 12V, they will draw what they need. It's no different than other warning lights and bulbs (brake, tail, turn etc) - no resistors are needed. Not sure why you need a diode either unless it's part of the 'logic' of lighting bulbs up... cheers, george.
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