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@ 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...

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...

@ 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...

@ tommthum62 - it is working now.

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 ?

..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...

@ 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...

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...

Hi. I have a small problem with my car's battery not keeping its charge because I am not driving the car as much, plus, since my place of employment is closer to my house I only drive 1 mile each way. So, I am guessing that the car is not on long enough to keep the battery charged for long. I...

Is it possible to change the device name for the Bluetti EB3A. I'd like it to display something else, or nothing at all, if possible. TIA.

I am searching this forum and other sites for a battery monitor that includes the running and/or time remaining displayed whenever I add something to my lithium battery, like you get on power stations. I know I've seen this some years ago in someone's custom van tour where they had a small...

Does anyone have any experience with the "Pecron E600LFP Power Station 614Wh 1200W" system? I'd like to know the bad and good about it because I have decided to get one. Please share your thoughts and experiences with this system, thanks.

Correct.., portable solar generators. I was browsing around Amazon, looking at the many portables they have, and reading the specs. On some of the listings, I was getting confused with the runtimes posted for various common items such as lights, cellphones, laptops, etc.., and they appeared to...

I've been working on an updated run-time calculator and get different results, and I believe that I need to factor in the Wh also. But that may be for another story/topic. Anyway. I've seen battery watt-hours (Wh), (like 268, 360, 400, 517, 700 Wh's) with build-in 600-watt inverters. Using...

I do not understand this and I read how people return the SCC if it is a positive and not a negative. 1. What is the recommended setup, pos or neg? 2. What is the best or preferred one, pos or neg? 3. Which SCC are affected by this (requirement?) PWM or MPPT or Both? 4. How do I test/determine...

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 -...

My experience with the Windaynation 100 watt poly thin panel so far. I received my panel a few days ago. With the weather being so hot here in NY (85-89) I had no energy to unbox nor test. Anyway. I finally unboxed the panel today while at the park and did notice some damage around the edges of...

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.

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...

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...

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...

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...

Sorry about your situation. My 30Ah battery arrived with a battery warning label on the outside package, and has the orange stickers on both sides and 'eco-worthy' sticker on top, like in the photos on the eBay website. However, I did notice some scuff marks on the battery. I would say my...

I still have not received the Dokio 150 watt solar panel. I received the battery last week or so but have not been able to test or use it since. My multimeter shows 13.31v, same as it was the day I received it. I can't do any other test since I have nothing to test it with. I did receive this...

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...

** 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 -...

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...

Hi, I am building a small solar system for my minivan and wanted to share my experience here as I build it. So far I have ordered a 150w solar panel and Battery. (A charge controller is next. I suppose some wires (not sure of size yet) and fuses and small fuse-block may be needed.) ** Solar...

MBR or anyone, do you know if there are 100Ah AGM/sealed/lead acid batteries that are <30 lbs for around +/- $100 that I could order and have shipped to homedot? I could pick it up there and just put in my car. Then I would not worry about UPS/Fedex careless handling. Homedepot has a of...

The plan is to adjust those two rails. Hopefully, they are adjustable. And, no fridge planned, though I do have one of those dorm fridges, the one with the piezo (or whatever its called) cooler piece, and it holds two 6paks of sodas. I could put some eggs and vegetables and give that a try...

I was considering the Dokio foldable 200-watt, but after seeing a video recently of a user with this panel and the condition of in less than a year, I decided against it -- link to that video ..the first 10 seconds says it all. I saw a 2pc 200-watt with good dimensions 35 inches in longest...

Hi MBR. I will not be using this setup for night time. I am not campervan'ing at this time, just leisure during the sunny days at the park to get my feet wet in vanlife. This is a startup system and to learn how to put things together, etc. I would say that at the most, I would be spending...

** 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...

** BATTERY ** LiFeP04 Lithium Iron Phosphate 20/30 Ah I am trying to build a starter solar/battery system for my minivan. To keep the weight down I would prefer a Lithium battery but they are expansive. (A 100Ah lead/AGM battery is heavy and the risk of damage during shipping is scary) Now...

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...