Question about Batteries.com 8148 Nickel Cadmium 2-Way Radio Battery

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Defective Ni-Cad Battery

I have an 18 volt Craftsman Nickel Cadium battery that will not take a charge. The charger has 3 lights. I heard they can be repaired. How?

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Try Re-Conditioning the battery first. Full procedure at: ysuusy.com/easybatteryfix.html
"Cordless Power Tool Batteries and other batteries that contain Nickel Cadmium (NiCd) Cells can be Re-Conditioned to perform as well as new or even better than new. Proper maintenance after the procedure will insure years of usable life.
The First and most common procedure for Re-Conditioning a NiCd cell is by using a Technique called "VOLTAGE SURGING". Over time the crystals within a NiCd cell begin to combine and get larger. This causes them to loose capacitance and also break through the inner seals of the cell.

Surging the NiCd cell using a higher voltage causes the crystals within the NiCd cell to shatter and become smaller. These smaller crystals have a greater surface area and therefore contain a greater capacitance for energy. "

Posted on Mar 10, 2009

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There are several companies who repair or can replace the NiCD batteries used on tools. Try googling the name of the product etc. (ie. "craftsman drill battery replacement")

Posted on Jan 18, 2009

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My 4 year old Daughter left my craftsman light 19.2 on all night. When i went to charge it, the charger said the battery was defective.

I didn't want to believe it so I tried a trick. After applying the trick, I tried to charge the battery and this time the charging light came on.

Hurray the trick worked. This trick should work for any battery. Please visit my web page to see the trick... my TIP is free but I like to track the page counts to see if people have this same problem I do.

So before you open up your battery and replace the cells try my TIP first.

http://www.geocities.com/fongbar/tech/dischargednicad.html

Posted on Mar 22, 2009

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2 Answers

My walkie talky batterys won,t hold a charge. only couple tries and dies?


The battery has to be Ni-Cad, nickel metal hydride, or lead acid types to be rechargeable and you have to use the proper charger.If the batteries are new, get your $$ back; if they are old they might need replacing. If they are carbon zinc or regular alkaline they can't be recharged. Of course, read the manual.

Mar 01, 2015 | Two-Way Radios

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How to revive old Ni.Cad and Ni-Mh batteries.


Hello,

This is a hit or miss procedure so do it at your own risk. It sometimes happens that your above mentioned batteries go dead and your charger doesnot recognize them and shows an open circuit or similar. to reveive these batteries you will need a 12v Lead acid battery. connect the -ve terminal to the -ve and +ve to the +ve for approx 6-10 secs to each cell individually the cells should be warm to the touch and not hot. At this pint you should connect them to your charger and it should start charging them. most of the time it works but it is not foolproof method.

on Mar 01, 2010 | Two-Way Radios

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Changed the battery in my 2-Way Radio CLS1110 and it will turn on but when you push talk it goes off


The battery is bad or not charged. Check your charger and charger/battery connection. Clean all contacts with a pencil eraser and try charging again. With a new battery it may take up to 3 charge cycles to fully charge your battery.

Best regards.

Jan 20, 2014 | Motorola CLS 1110 (1 Channel) 2-Way Radio

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Icom bc-179 do not charge the battery


Charging a battery requires two components. A working charger and a functioning battery. The concept is simple. A battery charger must output more voltage than the battery does, and at an acceptable current level. First determine the battery output from the ID sticker, then measure the charger output. It must be 1 or 2 volts more than the battery output. If the charger is working, charge the battery overnight. If the battery does not charge or runs down quickly, the battery must be replaced. All batteries have a limited number of charge cycles. The most common problem with Ni-Cad batteries happens when they are re-charged before they are completely discharged. Recharging a half used Ni-Cad sets up a short term memory and the battery discharges faster than normal.

Nov 17, 2013 | ICOM Informatique Two-Way Radios

1 Answer

Where can I get a new set of rechargable batteries for my cobra microtalk cxt275


The Cobra CXT275 radios can operate on any type of battery (Alkaline, Ni-Cad, NiHM). Each radio uses 4 AAA batteries. Only special rechargeable batteries can be recharged in the actual radio (see below)
If I remember correctly, they come from the factory with NiHM batteries rated at 300mAH. "mAH" stands for milli-Amphere-Hour and it represents the storage capacity of the battery. (The larger the mAH, the longer run time of the battery)

You have 2 options: A or B
Option A) Buy a set of Nickel-Metal Hydride AAA rechargeable batteries and a external battery charger. When the batteries die, pop them out of the radio, and charge them in the external charger. When they are recharged, pop them back in the radio.
Option B) If you want the ability to charge the batteries in the radio, using the "drop-in charger" then you will need modify the batteries so they can charge in the radio.
Follow these steps: You must be somewhat electrically inclined to do this...Note: By doing this you are going to void the warranty of the radio and new batteries that you just purchased.
1) Buy a set of Nickel-Metal Hydride AAA rechargeable batteries. You can probably find some rated at 600 mAH (this will extend the run time)
2) Looking at the back of the radio with the cover removed, there are 4 slots for batteries.
3) Looking at the battery slot on the far right, you should notice 2 contacts for the negative contact. The one on the bottom, is the contact for the radio to receive power from the battery. The one on the side (about 1/8" inch up from the bottom contact), is the contact for the charger to recharge the battery.
4) You will need to modify 1 battery for each radio. Somehow you need to bridge the bottom contact with the side recharge contact.
5) (look at the negative end of the cobra factory batteries and this should help you realize what you need to do) depending on the manufacturer of the new rechargeable batteries, you may be able to use an X-acto knife and remove 1/4" of the plastic wrapper from the bottom of the battery on the negative end. This should reveal the metal shell of the battery that can mate with the radio's side recharge contact.
If it does not, you need to find another way to have it mate with the bottom contact. You might be able to use some Aluminium Foil to bridge the bottom contact with the side recharge contact. Be sure the Aluminium Foil does not touch the positive contact of the battery to the left! You could have an electrical short!
6) Insert the Modified Battery into the right slot.
7) Insert the other 3 new batteries into the other slots. These do not have to be modified. Only the right most battery needs to be modified.
8) Drop the radio in the charger for the batteries to charge. The red LED on the charge base should come on. If it does not, then the side recharge contact is not making a good connection with the negative battery terminal.
9) If the red LED comes on, then the modification works. Let the batteries charge for 24 hours for their first initial charge.
10) When the batteries die after radio use, then charge them for about 12 - 16 hours in the drop-in charger. Do not let the radios sit in the charger for long periods of time. That can destroy the batteries. Take the radios out of the charger when the allotted time has passed.
11) If you hardly ever use your radios you will want to drop them in the charger for about 8 hours every 3 months. This will keep the batteries fresh without damaging them.
I hope this helps, Thomas (Electrical Engineer)

Feb 22, 2012 | Cobra Two-Way Radios

1 Answer

I just got a brand new uho78sx, put it in the charger dock after about 3 hours the light went of indicating that it was charged but it would not turn on. When I put it back in the dock the charge light...


Hi,

It would seem that your battery pack is Ni-Cad, if so, these have a memory, this means they will only recharge from the last top-up, rather than complete charge.

You need to completely drain the battery pack until it is flat, as in no charge left.

Otherwise, buy replacement Lithium Iron (Li-On) battery pack from Uniden or on ebay, these don't have that memory effect the Ni-Cads do, so you know you won't have these problems again.

If it's a really good radio, then replace the battery pack with really good one.

I hope this has been helpful.

Regards,
Peter

Nov 16, 2011 | Uniden Two-Way Radios

1 Answer

Won't charge


1) Clean your battery contacts with a pencil eraser. 2) Check your battery and charger to see if they are functioning by switching them to another radio and seeing if the problem persists. 3) If the battery and/or charger are defective/old, replace them. (Batteries have a 12-18 month life expectancy) Here is a link to the Motorola store http://www.store.motorola.com/mot/en/US/adirect/motorola?cmd=catDisplayStyle&catKey=601560

Oct 26, 2009 | Motorola T5410 (14 Channels) 2-Way Radio

1 Answer

Motorola CP040 charging time


The rapid rate charger WPLN41__ will typically charge a battery in 90-120 minutes. Your battery should be depleted or nearly depleted when you place it in the charging stand. Be certain your radio is always turned off, when charging an attached battery. The NiMH battery will generally go 12-16 hours on a charge when new. If you work an eight hour shift, you might see if the radio will go 2 days on a charge. Later as the battery ages, you will need to charge it nightly. (Think of putting it in the charger as putting it to bed at night.)

Rapid charging is necessary on NiMH and Li-Ion batteries. They require a "hotter" charger, a fast rate, to completely charge the battery. It will not harm this chemistry of battery. It is safe to leave the battery on the charger overnight, or for a weekend. We would not recommend leaving the battery on the charger longer periods of time, as that will age the battery and reduce its life.

(Sidenote: Frequent rapid charging will however reduce the life of a NiCD battery.)

Aug 12, 2009 | Motorola Two-Way Radios

2 Answers

Midland rechargeable battery packs won't recharge and vibrate


You might contact Midland Radio Corp to see if they have a fix for your problem. If I had to give an educated guess I would say the batteries need jump started (which sometimes happens when they are new and too low of charge; or there is a problem where they contact the charger and they are not receiving a full charge; or they are defective. I am sure the factory would be happy to assist you in solving the issue.

Here is there info: http://www.midlandradio.com/contact_us.asp

MIDLAND RADIO CORPORATION
5900 Parretta Drive
Kansas City, MO 64120
P. 816.241.8500
F. 816.241.5713

Email: mail@midlandradio.com

Nov 07, 2008 | Two-Way Radios

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