Kenwood TS-440 Ham Radio Memory Battery Replacement 

After the radio ate a couple batteries my elmer just ran wires to a D battery holder on the outside of the radio. It worked great. Gave the radio to a friend.

GREAT VIDEO ! 73

Thanks for sharing your video!!! I have a Kenwood TS440 with the auto tuner. It was suffering from the dot issue, but only on the 10 - 15 Meters and 40 - 160. The 17 - 30 Meters worked fine. This TS440 belonged to a good friend of mine who passed away. Apparently he had tried to fix it and remove the glue, but while doing that he broke two different diodes. I had the replacement for one of them and now it works from 17 - 160, but still don't have 10 - 15. Of course that particular diode is hard to find, but I finally found it and ordered several. All I have to do now is after hunting season is over put it back on the bench and replace the diode in that circuit and hopefully the dots will be gone from that part. Right now I am using the radio since I mainly operate 20, 40 and 80 Meters. At least now I know where and how to replace the battery. Keep up the great videos my friend and hope to hear you on the airwaves again. Juddie - WD8WV

Thank you very much for a really nice video. That was exactly what was wrong with my TS440S. I thought it needed to be replaced but it was just the battery. Now it actually runs fine again. Many thanks from OV1AV

Thank you for the walk through. I will certainly have to do that on my Ebay purchase that will come in next week, as the scrambled display have been reported.

Thanks for the tutorial. Very clear instructions. I used the W09-0599-05 battery from East Coast Transistor parts. $14 shipped. Direct replacement. In my '440, Kenwood slightly sprung the battery tabs downward while the solder was hot. Solves the vibration problem without the annoying tape. Re: ESD (static) - who needs wrist straps? :) Just touch the metal chassis often. It also doesn't hurt to briefly touch the soldering iron to the metal chassis. Cheers!

You definitely have awesome radios. Thanks for sharing and thumbs up.

Super nice setup loving it keep up the good work!😍

an oldie but goody.

I've just done it, waiting till the morning for 2nd test..

GREAT VUDEO--I JUST GIT THIS RADIO DUVE TO ME AFTER MOTHER NATURE TPPK PUT MY RADIO AN YOUR VIDEO HAS HELPED ME GET IT SET UO.AND IT IS WORKING VERY WELL...THANKS AGAIN AN 73SW FROM KF4IZY JR IN TUSCALOOSA ALABAMA.. SORRT FOR ANY TYP OOS I AM SIGHT IMPAIRED....

I replace the battery in my ts-450sat. If I had to do it again, I would find a way to install a battery holder rather than soldering in a new battery and I would relocate the battery to a more convenient location.

My 1990 R-5000 needs this. Already had it apart. Tight quarters. Also going to do a warm white LED panel bulb, mine's dead. Good info, Thanx.

Well done. I may have to do this w/a TS-430 I'm picking up this Saturday. Just curious about soldering the battery itself: what was your temp here? Looks like even a second or two too long and you're going to injure the new battery.

The maintenance manual is online and shows the disassembly procedure.I think you leave the bottom screws in and they are not taken out all the way to allow the head to pivot like on the TS 570.

muto obrigado mesmo sem emtemde mais deu certo

You are braver than I. I have the shakes so it is near impossible to do small work anymore. What power supply are you using? Thanks Kevin KA0KAE

I see that you mentioned repairing the "dots" problem by cleaning the VCO's....Did you make a video of the that procedure? Thanks!

Nice to see you're gettin the old gal back on the air. I saw it on the bench in your new Future of... video and was wondering if you'd got back to it. 73

I have the ts140s,,,I'm assuming the procedure is the same,,for dead batteries,,,so my question is,,,will the radio work normally, EVERY TIME, WITH THE RESET,,,,, with a dead battery,,,after doing the reset sequence,,,but WITHOUT changing the battery,,,,?,,,I realize, I'll have no memory, but it beats the 200 buck, battery replacement charge, for an 8 dollar battery, from kenwood,,,,,thanks,,,,,informative vids😎

Same problem after years of inactivity but chose service. My eyes aren’t what they use to be. Also removing Sony-Bond from board. Any suggestions on replacing worn off button labels? RIT, TRX, A=B, etc worn off. Decals available?

It's back to health!

Nicely done ! Too bad they couldn’t have designed that better , but u guess how often would that battery really need to be replaced , 10yrs or something probably

i dont have any of the 3v type batteries with the side coverings like you have but i do have a stack of CR2016 and CR2032 lithium button batteries would the be ok to use if covering with tape around them there 3 volt button batteries so with care i would guess they should be ok. but would sooner check with somebody just incase

How to change battery memory of icom 271 or reprogramming it to make it 141mhz to 157mhz

does anybody know if there is a way to run the 440 from the computer or is it just to old for that?

tu gl 73 but one quenstion why is my 440 deaf on the broadcast bands ?

I had 2 of these radios there junk I will never own another one.

So you don't recommend rubbing a balloon on my hair for 5 minutes before I attempt a repair like this? LOL! That type of repair is not for me. Been using my hands as hammers for years, so the fine motor control is just not there.