Tried powering with a Portable DC 12V 4500mAh Rechargeable Li-ion Battery, nothing happened. Any ideas?
1792157
i power it with a strong 15,000mAh Li-ion 5 volt usb battery, and then use a cheap boost converter to up it to 12v, works magic, ran it for 15 hours on one charge, and plugged my raspberry pi into the same battery
1792158
You need to have a video signal to make the screen come on. Without a signal the screen won't do anything.
1792159
If you do not have a signal going to the monitor, you will just have a black screen
1792160
I used a 12dc 2amp wall transformer, some of these will not display video unless to have a camera video hooked to it. I hae purchased 4 of these.
125591
That was one of the problems... nothing appeared to indicate it was actually charging. So I just made sure I had it plugged into a good socket and let it charge overnight... But the next day it still didn't work, so I returned it.
1320614
Sounds like the battery pack is no good! Did you try contacting the seller? Or try using another cable to charge it and see if that works.
1819356
Mine is connected to my camera and 12 volt battery and all of the power and ac/dc cables are plugged in but it won't work.
1515343
I had the same problem. I used my I phone charger I also tried pluging it into my computer to charge. I didn't get it to show more than the battery blinking. I also tried new batteries it still did not show a full charge. The radios died after a few mins use.
249213
It could be defective, however with no information as to how it is connected, that would be impossible for me to determine. Try connecting the device to a different usb port on the computer. I have mine first connected to a "powered" usb hub and from there to a port on the back of my PC. That way batteries are charged regardless if the PC is on or not. In most cases if the device is plugged directly into the PC, power to the device is also turned off and not charging the battery when the PC is off. Hope this helps.......
436754
Did not have any trouble. Try installing a fresh set of batteries, and see what happens.
2215321
Absolutely, I had the exact same issue, both the supplied power adapter and a back adapter failed. I bought this one and it's charging since then. I would recommend trying this.
1783042
what kind of power did you supply, it has to be a direct power source eg. you can hook it to the cigarette lighter terminals if it still does not respond try the battery terminal and change the channel , do not connect it to a cigarette lighter plug, it will not work because it need a high power source good luck
1114751
Does it power the device--so your mini operates? If so and it doesn't charge I would guess you have a bad battery.If it doesn't even power the device so that it turns on I would think the power supply itself is defective
215252
Did it power up? Mine cane with a power source and I successfully used a 3S Lipo battery.
2196035
If it won't take a charge then it is done for and your only option that I know of is to buy a new battery. No body is willing to install a new battery pack in the lithium ion batteries due to the risk of explosion.
687980
I had the same problem. So, I tested the battery with a multi meter and it tested at 4 volts dc. That was the condition it arrived to me in. I tossed it in the trash and bought an equivalent from RADIO SHACK. It tested at 12.3 dc volts. I hope this helps.
320478
That's an interesting question. As reported in my original report on this product, the unit I received was non-operational. If I were travelling, thanks to your question, I would think about using electronic devices with external power packs to recharge batteries. (th)
147464
i think you should start with trying another charger. since its a micro-usb port it shouldnt be too much of a problem finding one. you should also try different sockets... the electrical output may differ a little bit. if the problem still persists, i assume its the battery. try discharging it and (however) charge it again up to 100%. your next option would be buying another battery... good luck!
674595
Plug it in an leave it charging until fully charged! As in over night. Most of these micro devices have a control chip that needs to be fully charged to wake up the unit. That should solve the problem. If that that doesn't work, return it, but I bet it will. This unit may NOT work when plugged in. The safety feature is to avoid a 110 shock. Rest easy. Once it's charged and operative it's got hours of fun in each charge!
916831
Mine turned on the first time just fine, but after that it had to be plugged into a computer in order to be turned on regardless of charge status. I sent it back because of that.