I have a pair of FRS-14ND 2 way radios.It says in the manual to use alkaline batteries. I noticed a plug in for earphones and just above that there is a plug in for a charger. DC 7.5 volts. Can i use a rated power pack on this radio and if so do the batteries have to be rechargable? And if i use a power pack / charger, can i run the radio while it is power pack is plugged in?
I have tried to reach Columbia Telecommunications, but no luck. Thank You, Gary.
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this is the sign of a damaged or dead battery pack. they can be rebuilt at Batteries Plus or replaced. I would also try alkaline batteries in the radio before spending money on new battery packs. Most rechargeable battery packs must be kept charged regularly, and should be fully discharged before recharging, or they will be damaged and end up with a limited lifespan. IF you are handy with a multimeter you can check to see that the charger is putting voltage out by placing the probes on the contacts while it is plugged in. especially if the cord is twisted or looks stretched, but generally it is the battery not the charger.
It looks like some of these came with alkaline battery backs, some with rechargeables, and some with no batteries. The rechargeable packs will be marked "NiMH" with the part number FA-BD on them. If yours are the rechargeable types they probably need to be replaced. You can also power the units with 4 AAA alkaline batteries.
I have the Cobra Microtalk 4100 FRS radios with charging base. After changing the batteries with new nimh rechargables the charge light would not illuminate and the unit would not charge. I noticed the original batteries had a metal band around one end. This band makes a small connection inside the battery compartment on the first battery. Seems to be a cheap way to ensure you dont try to recharge the unit with non-rechargable batteries installed. I rapped a small piece of tinfoil around one end of the first battery in the new set then popped it back in and now they will charge correctly again. Dont try this with non-rechargable batteries! I would recomend buying original replacement batteries.
I'm still looking for the manual (?).. it's more of a pamplet as I recall.
The battery charger is...
AC/DC Adapter Model 0750200DF
120 V AC 60 Hz to 7.5 /v 200ma
If you can't find the right adapter, you can probably get one of the universal adapters that will work.
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