Dear Friends of Amazon When I received the V-Amp I hear a noise inside the device,a technician found a Lithium battery&iquest;What is the use of that battery in the v amp?
1525893
I'm assuming it is to retain the user defined settings when the unit is turned off.
1622703
I would immediately send it back. It has to be defective. My two batteries work just fine. They take the charge and hold it until you are ready to use them. Sorry to hear you had trouble. These are hi-tech units and I do suppose that they are a little temperamental.
386161
Anyone crack one open and see if this is anymore than a transformer and a couple diodes or is it an active charger that dials back the voltage or current when the battery is charged? Thanks. (I know it's only $8, but still wondering)
1596767
You very well could be right about using the lithium batteries. I will try that before I write it off. Thanks!
978729
Allen: after using this charger a few times I am disappointed in it. One of the charging stations actually heats up the battery and it starts to leak acid. I stopped using it all together. I was standing next to it and heard a pop after not relizing what it was it took a bit to open the charger and find this is what made the noise. This charges very well but that one station kills the battery. I'm sorry to say I am disappointed to say the least. To answer your querstion it has lights above each charging station and they go from red to green when the batteries ar charged.
2232447
Dear Kevin M,This is greeting from Loftek Direct.The amp and voltage of the input are 5A and 1V. It can run continuously when you plug in. Technically, the lithium battery will not damaged in this way. But if you transfer a big file when you plug in at the same time (if it need a really long time), it will generate external heat and may be reduce the battery life. By the way, the MW2-21's battery life is about 500 rounds.
417111
It should turn on and tune accurately and regulate the volume, bass to the amp, etc. Amazon has a 30 day return guarantee. I would also try another battery and then contact Amazon which also has something like an A to Z guarantee. My guitar came with a lifetime limited warranty small packet which covers quite a bit. It sounds like others were missing this packet too. Did your guitar look like it had been used? I hope things work out ok. A new guitar should be almost perfect!
1611938
That's a shame! I'm sorry then I don't know about this model. I'd say your battery sounds defective:(
1987565
Yes, I did a "soundboxectomy" by snipping stiches by the tail after one of ours stopped making noise. The batteries (2) were LR1130's. I ordered replacements on Amazon very cheaply but was unable to reactivate the device. Must have been a device failure but one of the batteries tested bad.
1154774
Make sure the frequency channels and vox are programmed the same. Also, make sure you remove the thin plastic off the battery terminal. I initially had some problems but now working great
444276
I ALWAYS use lithium batteries in mine. I do NOT ever use rechargable ones. Right now I am using 'regular' batteries since my batteries died while we were away at a graduation. I will use them until they die and go back to the Lithium. Also, I have had to take my batteries out totally and reinsert (in short - reboot) but it was because I did NOT want it on video and had hit the button in error. I am wondering if it could be your camera.... It would be worth a try just to use a different type battery and if it still gets hot and stops working, send it back.
1605121
Perhaps the battery has been moved, maybe during delivery it was banged a few times. It really is a simple to use device. If it's new I would suggest to return it and buy a new one.
2241640
Hello, friend thank you for you contacting me. the battery is a built-in battery, do you want to change a battery ? what's kind of battery do you want to change ? I will ask for help from my technists about this . looking forward to hear from you. thank U so much ! have a nice day !
1437833
Follow up: After several months my V3 developed an termittant pulsing noise in the left channel. I worked with a technician in China to try and get rid if the noise. Not successful. I purchased a second one with the same results. Finally got a Fiio e7K DAC/Neadphone amp on Amazon and I'm now very happy.
1421649
Sorry, I never thought to look. All I can tell you is that it is installed in a normal 15Amp 120volt system and works great. It makes no noise while in operation. I have found no fault with this device.
317968
How do I find out what is wrong with this battery? I did not know that you aren't supposed to use the regular battery tenders on these kind of batteries and I left it charging for a couple of days and now it is beyond dead. So if the tender didn't kill it, apparently (also read just now in the questions section) if it drops below 8% charge it is no longer anything but a paperweight? So tell me now if I should just go out and buy a new battery after wasting my money on the 1 ride I got out of this battery.
579119
i´m very disapointed of the performance of the 36db amplifier because I connected to the cable TV service and I don¨t got good response.Another Amps,Radio Shack for instance, works fine. I don¨t recommend to buy this one which do not have any Warranty. About Power supplies, Amazon never states voltages in all electronic devices. My suggestion is to put 110V - 220V or the last Autovolt; for this reason I do not buy any more electric devices. J. Humberto Gamboa (Bolivia)