Does this have battery. I'm surprised nobody makes a transmitter with normal ac and no battery I can leave plugged in all the time.
330768
Does not have a battery. You can leave it plugged in all the time if you wish.
330769
This TRX_HD is using pwoer from normal USB power adapter directly without any battery inside. It is very useful and convenient unit and design.
330770
no batteries. I leave mine plugged in and turn the power button off when not in use.
1775486
Yes....both the transmitter and collar have rechargeable batteries. It comes with a charging unit. Collar should only be "on" dog or no more than 8 hours because of prongs, even though loosely attached. My dog's collar lasts for 3-4 days before needing charging. Really glad I bought this. I first bought a "cheapo" unit.......didn't hold up at all!
948315
Mine did come with a battery however, I didn't buy it brand new. It was refurbished. If you're just looking for a cable modem, you can do much better than this one. If you need the EMTA capability, there are also better alternatives. After using my uBee cable modem for a few months, I decided to retire it forever.
2062955
I have not needed batteries but power the WH FM Transmitter 3.0 off a USB port (adapter came with the transmitter) on my Imac. Succinctly put, you do not need batteries if you use an alternative power supply.
849858
If you continue to have an issue, contact seller and return as it may be defective. If you read the reviews, some people have received a defective transmitter. Also make sure batteries are in correctly. A few times I incorrectly put batteries in. After being used, remove batteries to prevent them from being drained.
2114155
Mine worked fine. I read on one forum that high capacity rechargable batteries could damage the transmitter, but the manual didn't say anything about it.
940956
It does not come with an AC charger. The headphones operate on battery only. Battery life depends on usage. Although there is no AC adapter included, you can purchase one. I suggest you do, because if you fall asleep, your transmitter will drain the battery if left on.
1729936
No. No transmitter, just an alarm that I can hear throughout my downstairs with the garage door closed. (I have it on the circuit my freezer is on in my garage.) It has saved me hundreds of dollars worth of food.
676077
My unit doesn't have a battery. It plugs into the house current and receives it's signal from the transformer attached to the house main door bell. (It works just fine.)
746356
In my experience, the battery life is three weeks to one month under normal use. I am not happy with this transmitter and will be returning it.
37771
Mine came with an Ac cord. The description says it is battery powered, mine does not have a battery, just a cord. Sorry I can not help
2176679
yes a transmitter with 4 pile, and a 2S 3000mah battery but this battery is very bad quality
2113965
I have not had any problems with the transmitter. I have purchased batteries that are duds, though. Use a multimeter or a battery tester to verify that the new batteries are properly charging. (I use the "Amprobe BAT-200" battery tester that is available on Amazon). If you have duds that won't take a charge, then you will need to buy new batteries. I have had good luck with the "NextGen 2/3 Rechargeable Battery For RF Transmitters" sold on Amazon by Parts Express.
1382928
No AC connection. Installed battery four months ago, and is still at 90% life, (sensor gives you a readout of battery life).
903541
Yes, the transmitter needs power to transmit. It comes with a long cord with a very thin wire connecting the last 4 or 5 feet to the transmitter.
362910
No, it doesn't have a battery. You plug it in when you need to use it. Make sure the car is running when you do so.
77658
It does not, there is no battery. This dvd player has to be plugged in at all times.