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There is a HF in my area not too far a drive, and when I went to check them out, (the 4-panel 100-watt kit) it was very heavy. I was like, "wow! no way!" And they were large for the size and weight and wattage I could not justify getting them for my purpose and use. I just recently purchase the...

repeating what i said on your youtbue community board.., i'm a smalltime software developer (delphi) for windows and android. and i am currently working on a solar calculator plus, many other projects in my spare time.

i cheat every tgiving. i go to the grocery hot bar and pick up a cooked turkey breast (like those small cooked personal chickens) for about $9 bucks. the rest (veggies) i cook quickly on the stove top.. can corn/peas and boil small potatoe (i like it partially cooked) and oven-toast a roll. that...

@ 400bird - so far the battery has never died on me. I know as I've been through it before. And in my experience, if the battery dies (I assume you mean, that a person leaves the headlights or fog lights on for instance, then the battery has died in those situations) the battery becomes that...

for the record, i do not consider myself a professional. there are plenty of smarter people in this field than i am! with that being said.. i started back in 1980, with BASIC, then C, then Turbo Pascal 3.0 through Delphi 6/7 and now XE7. I can't afford the latest since i can't stay long enough...

oh, i just wanted to mention that i will be starting another project using a hand barcode scanner. something i've been meaning to get into in a Delphi programming project. i am ordering this guy https://www.amazon.com/dp/B00LE5VV1C device. i want to build my own personal inventory, for my...

@erik.calco: i know you can use your phones/androids camera as a scanner, but I always wanted a handheld barcode scanner and write custom software for it. and for this project, i do need a plugin barcode scanner. and thanks for your interest in my hobbies (y)

i'm happy to report that i just received my barcode scanner. i mean. it feels like i only ordered it yesterday, that it arrived so quickly. they gave me 12/4 to 12/9 date. but here it is. i'm so happy! ? ? (y)

@ 400bird - I have a real volt meter, a digital multi meter by RadioShack (remember them?) catalog # 2200813. The car has been sitting since 5am today when I returned from. I went out w/ my multi meter to test the voltage. Current outside temperature is 55 deg. Its pretty cool out. Before...

I was wondering, how do you calculate the angles for rigging up a solar panel for the maximum sun coverage? I have seen numbers like 20 to 45 degrees but I don't know if those are correct angle numbers. What I'd like to do is rig some wood or metal poles and draw the angle degrees on them and...

Actually, I was considering a flexible or even a folding panel, but the thin version of the Windynation appeals to me since my recently purchased 150 watt Dokio 38x38 is 25lbs too heavy for regular daily moving around in/out the minivan. So, I decided to order one from Homedepot, currently at...

What actual wattage will you get from these panels? I've been researching many reviews on Amazon and comments say well below the package ratings. I sure wish there was a go-to list of panels for actually tested panels from members on this forum. I'm looking for around 170 watts for my...

in his latest video (Renogy "Smart" 100Ah LiFePO4 Battery Tear Down --> ) at 6:07 he shows the monitor, and it says (13.5V, 21.9A, 295W) and after coming back about 5 hours later, the monitor showed (10.2V, 26.2A, 268W) before finally shutting off. I did not see 1000w or 1500w. So, I must have...

@ kenkoh, it might be the software brand for that PDF reader having that limitation. Maybe try searching for another PDF reader.

Hi to the Moderators -- FYI: I have not received any notifications for this topic that any multiple were made. I have a 2000 olds sih minivan. It is from Texas, I believe. I purchased it about 4 years ago, 178k miles, now 187.5k miles. I don't go very far with it. I was going to build it out...

Ok. I am searching for another 150 watt solar panel, and I came up with the one below. The price is not bad, $136 w/out a scc. However, something odd about it. If you look at the specs (in the photo I show) the math does not add up to the 150 watt they advertise, unless I am doing something...

..Also, during this past summer, I took it to a local shop and then ran some quick tests on it and the alternator and they found no faults. When I showed them the battery monitor I was using to test and monitor the voltage, the mechanic said don't use those cheap things--they don't work! But I...

I am just curious. Has anyone built their own fuse box? I was shopping around on amazon and ebay, searching for a cheap 4 to 6 fuse setup but man they are expansive. Today I thought, maybe I could build one if it wouldn't be as expansive than purchasing one. If you built one, how did you do...

After long and careful consideration, I went ahead and ordered the 30Ah Lithium battery because I didn't know how well I could maintain the charge of a lead-acid type battery on a regular base, especially since I will not be permanently mounting the solar panel to the minivan roof. Also, during...

I don't understand how this is happening to me now. Well, this low battery issue started over this past summer. I have a tenant in my building who drives to work every day and his job is even closer, and he never has this problem. What am I missing ?

@ tommthum62 - it is working now.

The voltage varies while driving. If the battery is pretty low like in the above mentioned posts, the battery monitor will show between 14.20 up to 14.55v. And as it gets charged, it slowly drops down to 13.4x, give or take. But that range depends on how long I drive or have the car on. I...

** Charge Controller ** I purchased the Renogy Wonderer PG What I have so far: * price $134, solar panel - 150 watt, 38x38x0.5 inch 22 lbs by Dokio - https://www.amazon.com/DOKIO-Watt-Monocrystalline-Solar-Panel/dp/B07CG8KV33/ * price $155, battery - 30Ah Lithium LiFePO4 7 lbs - by Eco-Worthy -...

I am searching around but this time would like to know what (true, not fake or simulated) MPPT SCC would anyone recommend for this panel. DOKIO 150w Solar Panel Kit Portable Folding Monocrystalline Include Solar Charge Controller and PV Cable for 12v Battery Charging Camper RV Van -...

Thank you, guys, thus far. bookmarked for the angle lookup. Still searching, however, because I also would like to build a user-friendly app. I just need to find a database of this info to plug into a custom db I might build for the app.

So, I have several batteries laying around and I don't know their amp-hour rating. I would also like to calculate its Wh (watt-hour) as well. I assume you have to know the Volts and then the Amps to calculate the Ah and Wh. I am not sure if it is a Calculation or steps to perform to arrive at a...

some good info here. i have something to add, i hope it is useful. to get a base for a percentage of lifespan left, (it may be crude but usable to some extent) can't you just run a capacity test and then calculate the difference with a known new source's rate/spec?

/rant on/ ok, i had to ask this question because i could not search for it in a way that would not drive me any crazier than i have been so far. I am building a calculator for windows and android, and I have plans for various features not found in any other app, and i want to offer it here...

@ supervstech - can you give me a better alternative to testing for voltage that you can help me fine-tune the issue, be it the battery or alternator? I want to determine if I have a possible issue and then take it for another opinion. But I want to be sure there is an issue--based on a better...

** todo: order one 30Ah battery today ** Okay, so no news or response to this post is good news to me. I will order the 30Ah battery today. I still have not selected a solar panel. Still deciding on a 100-watt panel I am still reviewing and a 200-watt (2pc of 100w/ea) and an $83 flexible...