Macbook Current Battery Charge 0 Fan Noise

There have been some people who complained about the noise coming from the fan. However, I personally do not think that the fan noise is that big of a problem. If you find the fan noise to be a problem, I suggest that you consider looking for a different charger. Personally, I like the fact that my batteries do not get hot when I charge them, and that I can charge one battery at a time with this charger. I usually do not write reviews because I have a reading disability and I use text-to-speech software to convert my speech into text. I try to use Grammarly to identify and correct any grammar and spelling mistakes, but if I miss any, I apologize.

This charger does everything that it's supposed to do! Charges batteries quickly! Shows current battery charge via LCD! Even has the option to discharge batteries before charge! I use this to charge batteries for wireless microphones.

I charge my batteries every week for my upcoming wedding. The interface allows you to see the current charge of each battery. Batteries charge well and hold charge wonderfully. I use Eneloop Extreme Pro batteries with this charger and one set of four batteries gets me through the ceremony and reception.

I was looking for a charger that I can use to charge via a USB-C port, to take advantage of fast charging using a battery pack while traveling. The Jupio charged a single battery from just 3% charge left, all the way up to 100%, in 2 hours and 38 minutes. After 2 hours the battery was up to 93%, so it took the remaining 38 minutes to charge the extra 7%. I also have a RavPower charger (no longer available) that uses a micro-USB port for the charger. The micro-USB specification limits the amount of current traveling from the battery to the charger, so it's not as fast. A similarly depleted battery took 3 hours and 20 minutes to charge in the RavPower. When buying such chargers, pay attention to the current supplied to the battery. I couldn't find many chargers that can supply 8.4V at 1A to a battery as the Jupio does. For example the RavPower is rated at 8.4V and 0.7A, so it charges much slower. The other notable charger that seems to handle 1A is the SmallRig one, but it was not available when I got the Jupio. Note that charging 2 batteries at the same time will limit the amount of current going to each battery to 0.8A, which means slower charging overall. I have not tried to see how long it takes to charge 2 batteries.

Why charge one battery when you can charge two at the same time? Shows current amount of charge and when the charge is complete. Best feature of all - you can plug this into your cigarette lighter! Now my batteries are recharged before I get to the next shoot or home.

This cooling fan is really up to its calling. I'm in a tropical country running my 2010 Macbook Pro with a second-party battery. This machine is known to overheat easily, and I've already had one battery blow up (literally--like a balloon) in the past. The heat I was accustomed to feeling radiating off the computer is now just a mild warmth. What a huge difference! For such a small price, the Thermaltake Massive pad is making a big difference in the environment that my Macbook is forced to operate under. For those not familiar, the overheated machine slows down hugely, so I'm even getting a performance boost. Great purchase!

I do not observe any noise from a fan, if there is one. Works great!

After ~5.5yrs, I noticed the internal cooling-fan began running full-time (quiet, but usually only runs if the batteries require charging, such as after an outage), and the usually-cool lower vents of the UPS were now a bit warm due to active charging circuitry. Then the normally 100% charge-level LCD indicator at times showed only 80% despite no outage. Time for a new battery pack! The most involved part was shutting down & disconnecting & eventually reconnecting all the protected equipment. After all was disconnected, out of curiosity I turned the UPS off & then back on - the charge-level indicator dropped from 100% to 60%! The old battery pack was in worse shape than I thought. Replacing the pack involved removing a couple screws at the bottom of the UPS & then sliding the face-plate down, then out. Then disconnect the power connector from the old pack, slide the old pack out, new pack in, reconnect the power connector & reattach the face-plate. Simple & quick! The charge level indicated 100% as soon as I turned the UPS back on - I let it charge for the recommended time anyway although I don't think that was necessary in my case because there was never any indication it was charging: the fan was off again & the lower vents cool to the touch again. My UPS seems to have a separate minor issue - a poorly connected LED that is supposed to illuminate the Power Button when the UPS is turned on. Instead, on mine, sometimes it's lit, sometimes it flickers, but usually it's off. The new battery pack didn't change that - the caution being that if the UPS has a more significant dysfunction, replacing the battery pack could be an expensive way to find out the issue isn't the battery pack. One last comment: Unlike APC, CyberPower unfortunately doesn't seem to have a recycling program for their spent battery packs.

Blackmagic 4K battery life solved! I ran this battery from 100% to 0% via D-tap to DC power on my BMPCC and the total run time was 7hrs and 15 minutes till the camera shut off! I did not actively record. Battery mounts comfortably to the Ronin and when I need to switch to tripod I just clamp it to that using the same thread on the back.

I put this in my link micro. The camera is working fine, but the battery level shows 0%. I changed the setting to Lit 10 also. Still showing 0%. Has long as the camera is running I'm cool with it, but would like to know the battery level.