Was wondering if anybody had used something like this maybe. USB A Plug output would be better but cannot find one. Would have to add a pig-tailed USB plug to it.
www.droking.com
It's a Jabra Move with built in battery.
Have you got a quality DVM like a Fluke and have actually measured the output???
Flukes are a professional tool, and are expensive. I would be surprised to find that anyone other than an engineer, electronics tech, or tool nut would own one. Even for electricians, if you are buying your own tools, it often makes sense to get an alternative brand that is cheaper...especially if other guys will be using it.
Only a minimalist so called "USB Power meter", that I normally use to check the health of the battery being charged, looking for the charge mAh to be in the range of the battery rated capacity. It can be switched to display voltage and current and clearly shows that as soon as the voltage goes over 5.1, which the panel output exceeds under direct sun light, the headset cuts off and the charging current drops to zero.
Thanks for the suggestions.
Well since I am a RR trained engineer I have to say having the best tools are important to me and yes I have two or three Fluke DVM's one is clamp-on. Here we are talking about a voltage difference of .1 and .2 of a volt at a very low voltage of 5V, so you want a DVM that is accurate YES you can buy expensive Fluke DVM's but there are models that are not expensive. If you have a need for a DVM for sure you want one that is accurate and for me that means a Fluke. The first part of solving any problem is to accurately understand what the problem is. Reading the new post from ML it seems that he has enough info to correctly understand what the problem is
Can you try two simple free fixes? One is cover up a part of the panel. Two is make sure that the panel is not in direct sunlight by adjusting its position relative to the sun.
Can do...but first need to go and discharge the headset!
The sun finally came back out, so went and tried the proposed free fixes.
It sounds interesting. What type of solar panel do you use? I've recently bought a 12v 300w solar panel for my RV and I'm happy with it. I'm also going to charge my boat batteries with it. But I'm clueless about any tips and tricks on its maintenance. So, thanks for sharing this info, I'll try to figure it out.
Mine is an old 5V 24W foldable panel by RAVPower (not made anymore) small enough to carry in the Tank Bag, and can be used for charging phone etc, far from the big boy unit for your RV. Yours will require a 12V to USB charger adapter. With my lightweight one, the device to be charged plugs directly into the panel and is exposed to whatever Voltage the panel delivers, which is at times slightly higher than the device will tolerate. You probably won't have this issue with a USB adapter.
