I have yet to fully charge either of the batteries. I am concerned that the charger makes a buzzing noise while it is plugged in, is that normal?
1615944
I'm not sure why the question was asked to me but after 2 months of using the batteries they started to expand so I threw them out
1615945
That doesnt sound right. Mine made no noise. Initial charge was 99%. Placed battery in phone and charged to 100% after a couple of minutes. Charges to 100% every time now.
1615946
I don't think that is normal, because my charger does not do it. So far I have not had any problems with the charger or the batteries. You should call the company and ask them about it. I am extremely satisfied with this product.
1615947
I don't think that's normal. Mine makes no sound at all. You should contact the seller and ask for a replacement. Do not leave it plugged in. It could be a fire hazard. Be safe.
1615948
Mine does not make a buzzing noise. Contact customer service they will get you a replacement charger out promptly. Mine do take a full charge and last as long as the OR battery.
945032
It does sound like a battery problem. Make sure you have the charger plug pushed into headset completely when charging.
343634
I did not have this issue. Other have recommended checking to make sure you have the batteries in the charger correctly (+/-). If this does not help your issue I would contact Amazon and arrange a return/exchange since they are most likely defective. I recommend an exchange since these are otherwise decent batteries.
978625
I'm not sure if your unit is defective. My newtrent does not make noise when charging. you may have to contact the company so they can help you with that issue.
2115047
I am no expert but it sounds like low battery power. I found one of my batteries no longer holds a charge even though the charger indicates it is charged. Otherwise check to see if the shaft is not fouled with dust or hair etc. Could be that also. Sorry, best I can do.
1827639
Hi Thomas Q., I ordered mine and plugged it in and I believe it has charged the batteries. I will check tonight when I get home to see if they were fully charged and let you know. I do know the charger red light came on when I plugged it in which should signify it is working and charging.FD
1073456
Check if hissing plugged in without batteries installed , if it does you know its not the batteries hissing. If only hear when charging ,wearing safety glasses, check for a over heated or leaking battery.Use only batteries charger is designed to charge.if all checks out should be OK. I never leave home while charging and have my chargers on a boot tray in work area and check during charging period.
1043199
"horizontal lines and a buzzing sound" You don't say whether you tried the unit both plugged into the charger and on battery power alone. The buzzing sound might be a symptom of a faulty charger that is not converting 60Hz alternating house current to 5 volt direct current. If both the computer and the charger were healthy, the unit would boot up normally after only a few minutes of charge. My suggestion is to email Wol Vol (you can Google their website to to this) and describe the problem. Wol Vol will almost certainly instruct you to return the unit for exchange or refund; they have an excellent return policy. Joe Gunn
1014276
Yes, mine makes a buzzing noise when it is charging. It is not very loud, at least in my garage, but I can hear it pretty clearly when I put my ear against the box.
2157728
I had this happen to me. Battery charger did not produce a charge of the battery. I got a new charger and everything works fine. I don't know how you would easily ascertain if the charger is bad except to see that the battery is not charged.
1620282
no noises. But I haven't used it for over 2 months and will throw it away. very disappointed. It stopped charging after three or four uses. Perhaps the noise is a good sign??
1958672
Hi, I am having the same problem with mine. I am sure these are defective items that are being resold. I have to shut it down, power cord in, turn it back on and then manipulate the cord just so. Sometimes it takes a few tries. When if starts to charge, I leave if alone, because it will stop even if lightly tapped. The charge doesn't last very long though. Very disappointed. I should have returned it when I got it.
1826700
I don't know how you are using the charger. I've had mine since May. I only use it rarely when I am traveling and need the extra boost. If you been charging and discharging the battery daily, you might have created a memory effect in the battery. Lithium battery were not supposed to have the memory effect problem, but it has been found that is not completely true. I would contact Amazon/Jackery to see if they would replace the battery since it's been only a few weeks.
1219412
I can't answer this, in my case once I use the charged battery, my charger/battery will not take a new charge, is this a normal problem and should I look for a charger?
1527139
The noise is a low voltage warning, put it on the charger and it will stop I leave mine on the charger at all times to be certain it is ready to use
1910164
In my experience with UPSs, mine would only buzz while switching to battery power or while charging. I would contact the manufacturer and request a repair or replacement.
1534790
They fixed it for me. I wasn't going to even deal with it because having the extra batteries was a plus, but after posting a negative review they contacted me and ultimately ended up sending the correct charger without requesting the old one back. I was fairly impressed. Hope that helps.