I would definitely take the bad battery out of the circuit, though. Otherwise, it may pull your new battery down.
Is the existing battery rechargeable? Many memory batteries are not, and need periodic replacement. If the existing battery is not rechargeable, you don't want to replace it with rechargeable batteries. When you measured the battery voltage, was it in or out of the circuit? That can make a huge difference in determining the problem. If the battery is rechargeable, you should check the battery connections with the battery removed to insure the system is properly supplying the recharging voltage. You will also need to be sure you use the same type of battery for replacement. That is, if the original is Nicad, you must use Nicad replacement, if it is NiMH, you must replace with NiMH, etc. The recharging circuits are different for the different types and may cause further damage or improper operation. Michael Charles Patterson wrote: > 6 volts would be just as good as 5.5 volts. That small amount won't make > any diference. > That sounds like a good idea for you, since you would always be able to get > new AAA or AA batteries. > > Charles > > ----- Original Message ----- > From: "Support" <[EMAIL PROTECTED]> > To: <kxt@kxthelp.com> > Sent: Friday, July 08, 2005 2:18 PM > Subject: KX-T: Internal Mainboard Battery replacement for KXT 616 PBX > > > >>I found the problem about my KX-T 616's previous issue with the dialing out >>problem. >>It is due to the PBX is reset after there's no electrical power for more >>than 2 days. >>All of the programmed stuffs lost after there's no power for more than a >>day. >>So, I opened up the PBX and checked the battery soldered on the mainboard. >>It is written as 5.5V on the battery but when checked, it showed only >>2.6~2.9 mV on the display. >>Hence, I assume it is the battery problem and due to that case all of the >>programmed stuffs are lost after there's no AC power for a couple of days. >>I was trying to find the replacement battery for that one but I cannot >>find any similar one here. >>However I've got the 4.8V rechargeable battery but which is slightly >>larger (about the double in size) than the original battery. >>Before replacing with that new battery, I want to get the suggestions and >>the comments about replacing the builtin 5.5V battery on the KX-T 616 PBX. >>Kindly let me know whether it is OK to replace the 5.5V (not working) >>battery with the 4.8V battery or should I connect that two in parallel due >>one is not properly working and another one is less than it's needed >>volts. >>Another idea is I could use the AA or AAA size rechargeable 1.5V batteries >>and put them in the new external battry socket. >>However it would be just 4.5V with 3 batteries or 6V with 4 batteries. >>So, I'm afraid of it could damage the system if over voltage or the system >>won't funciton if with less voltage. >>I am living in Myanmar (Burma) where spare parts are hard to get unless it >>is the common equipments. >>Oversea orders are also very hard to take place unless somebody go out to >>at least Bangkok or Singapore and get it. >>So, it is left with using the single 4.8 Volt battery or using of (3 or 4) >>1.5V AA/AAA size batteries. >>And whether it should be used with the new battries alone or parallel with >>that 5.5 volt builtin battery which is not working properly. >>Will be very much appreciate upon any suggestions and ideas. >> _________________________________________________________________ KX-T Mailing list --- http://kxthelp.com/ Subscription changes: http://kxthelp.com/mailman/listinfo/kxt
