RoyPow 30W PD Portable Charger with 12V 10A Constant Voltage Cigarette Lighter Socket, 86.58Wh USB C Laptop Power Bank, 18W QC & 12V DC Battery Pack, Perfect for Dash Cam Astrophotography or Camping

Why I needed something like this: I got this because my new vehicle does not have power to the cigarette lighter port when the key is off. Yes I could rewire it, but I didn't want to. I have a rexing camera that acts as my rearview mirror (the RexingUSA M2 MAX). It plugs into the cigarette lighter port and will turn off when the vehicle is off. Not ideal when you want to record your parked vehicle. Pros: I can plug this battery into the cigarette port to charge it, while also using a device through it. So it has the ability to handle input and output voltage at the same time. As long as the vehicle is running, using a usb-c cable will charge the battery faster than it is used. The battery has a lot of juice. I mean... A LOT!! If I accidentally leave the battery on while parked in my garage, 10 hours later it will still have some charge, but less than 25% of battery (based off of the 4 charge remaining lights on the device). So this will last you a very long time. I deliver for my second job and my camera is needed. There are a lot of stupid drivers out there. I was rear-ended at a stop light because the driver behind me saw the left lanes turn arrow turn green and he slammed on the accelerator for our lane that was still red. Sent the video to insurance and other driver was 100% at fault after they falsely claimed I brake-checked him. Even with this, 90% of the time, any issues that happen to my car are from other idiots failing to parallel park correctly. This battery allows my camera to stay on between deliveries while parked. My camera would also sometime reboot when starting the vehicle, because of the voltage drop while running the motors starter. While plugged into the battery, it won't do this as it actus like a UPS backup. It comes with lots of cables to plug your devices into, and it will turn your one cigarette lighter port into a charging hub with multiple options to charge multiple devices Cons: I turn it off nightly when parked in my garage. The power button is on top where the plugs are and can be hard to get to some times. you also have to hold the button a few seconds for it to power off. I wish there was a switch on the side to flick for off/on. But this is a very minor inconvenience for how awesome this battery is. If you drain it by accident, it appears to not really shut off when it goes below a certain voltage. I've come out to my car and seen my camera flickering because it was getting a trickle charge from the battery. The battery was giving it everything it had to send out a charge. This might be ok for charging other devices like cell phones, but not for when sustained power needed to a device. It should have a shut off incorporated inside when it drops too low. It also claims to be fully charged in 3 hours.... This is just a flat out lie. I can plug it into my 45w Samsung charger and it will take 6 hours to charge. it does the first 75% quick, but that last 25% takes 5 hours to do Overall: This is a perfect purchase, and I could not be happier with the outcome

Great little power brick for dash cam. This is a very portable power brick for a dash cam. Supplies plenty of power to power my dash cam and can use it for parking mode for a good 15 to 18 hours. This is probably dependent on the dash cam power consumption. PROS: Great and compact power brick. Easy to use. Holds a strong charge that sustains multiple devices Light indicators for charging to show how far you are in the charging process Comes with many cables that can be used 12v cigarette lighter socket CONS: Didn't come with a usb charging block as most don't in recent years Wish it charged a little faster Overall this is a great little power brick and I really don't have too many complaints. It works great for parking mode for dash cams in the parking lot, but is not sustainable for parking at home when not in the garage for long periods of time. I do love that it has the 12v cigarette lighter socket which can be used for many things and then I do not need that socket on the car in constant use.

It works just as intended and has decent battery life. It could charge my iPhone 13 Pro Max probably 4 1/2 times before it goes to 0 which is nice. Also great that it has a cigarette lighter port for my dashcam except that it dies and can leave the dashcam off for the remainder until you get back in the car. Depending on your dashcam settings, it will work fine for greater than 4 hours.

I mainly got this power device for the car lighter outlet because I need it for my portable food warmer. All usb charge your devices fast and you have plenty of battery life to charge your devices few times. Materials feels OK and device in general meet the expectations for the price. The only con is the time it takes to recharge, but that is understandable due the battery capacity. Even using a 30w charger it will take couple or so hours to fully charge. Pro tip: Get your USB C laptop charger (if you own one) to charge the battery bank at max charging current (30W). The packaging is nice and you have all cables included, which is a big plus for this type of devices also power cables aren’t cheap. They very thick and feels good quality in general. I use this for the 12v car lighter outlet and it works good. The device I used takes about 55w so it does work for what I need. Updated! 10/17/22 -Power bank don’t turn on every time (you might have to press the button few times) -12 volt socket doesn’t work always, you might have to turn the connector so it can have good contact and then works. - USB 5V/2.4A seems to start going out. Don’t get me wrong this is a average power bank, but to be honest if You don’t need the 12V socket then get something else with better quality.

Purchased it about 8 months ago. now the battery will only charge to 75%. i am not sure if the battery is not taking charge or the 100% indicator LED is defective. Also fast charge function doesn't work anymore no LED light and also takes a much longer time to charge. Really liked the product but when it fails less than a year not much more you can like about it.

It is a perfect device for a car to buy & my husband love it because he wanted to use it for his job truck for the warmer & it works just great for this job , I advise you to buy it because it worth it