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How to get two new batteries and charger for my FW13Z 2way Radio b685, 3.7V-540 MAH, Date CodeA3

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Which AA battery shall I buy for my digital camera? 1500? 1000? 2500?


Although you could use these, do not use alkaline batteries unless it is absolutely necessary. In some cases, alkaline batteries may have a shorter service life than NiMH. Alkaline battery performance is limited, especially at low temperatures. The use of NiMH batteries is recommended.
Never use manganese (Zinc-Carbon) batteries in electronic devices.
These batteries are only to be used in flash lights. The lower capacities suggest NiCd batterie. Also don't use these.
A set of new NiMH batteries, from 2000 to 2600 mAh with a good charger, will be fine.
Two things.
There are very fast chargers around. Don't invest in them. I payed 80 euro for a quick charger. Could charge 2700 mAh batteries in 15 minutes. The charger killed all my NiMH batteries I had (more than 40) It took me till the fifth or so died, before I realised it could be the charger. Since I stopped all my batteries one by one died and I had to replace them all
I now have some "fast" chargers that take 2 to 3 hours and the new batteries Can handle that.
Better buy a slower charger and some good batteries, than the other way around.
Second. Test the 2600 mAh batteries, if they fit.
To put more capacity in the "same" AA battery some brands made them slightly thicker. So it could be you can't get the largest ones in your camera.

Mar 21, 2015 | Cameras

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 Radio Communications

1 Answer

Motorola RDU2080D Short Battery Life


Short battery life can be due to several factors:

1) Short initial charge(s) when the battery was new.
2) Age of battery. Check your date code embossed on the lower portion of the battery below the label. On a three digit code the first number is the year, next two are the week of the year. If a four digit code the first two are the year. Example 142 is 2011 the 42nd week. OR 1142 if a 4-digit code. If you battery is more than 18-24 months old it likely needs replaced.
3) Short charging the battery by putting the radio on the charge too often, or with the radio turned on. Always turn the radio off when charging.
4) Poor connection with the charger. Clean your battery contacts on both the radio and the charger with a pencil eraser.
5) Excessive talking. Heavy talkers radios will run down quickly. It takes more energy to Transmit than to Receive. Using the 5/5/90 rule, your battery should go an 8 hr business day.

Note: There are 3 battery styles available for your radio. The one which comes with the radio is a 1100 mAH battery. There are also two others with higher capacities available.

Best regards.

Oct 26, 2011 | Motorola RDU2080d Two Way Radio

1 Answer

Can i replace my 800 mah cell phone battery with 1000 or 1300 mah battery


Hi,
You can replace current battery 800 mAH with higher mAH, but make sure the voltages are really same so that, you still can use your charger and the new battery will not damage your phone.
Regards,

Jan 16, 2011 | Cell Phones

1 Answer

HOW TO INSTALL BATTERIES IN MAXON 27KC AND WHAT ARE THE TWO BLACK THINGS IN WITH THE BATTERIES


KC27 Maxon CB need 10 batterys rechargables 1.2 v for 12v total, use the most amperes or miliamperes possible, if you have a charger case or 27-CRDL Cradle for 27-KC you can use 13.8v regulated 5 amps. máx. but need external antenna. When you put a radio in charger case it switch to use external mic, voltage, antenna & speaker. Actually 2500 mAh "AA" battery is very common and cheap. You can charge batterys on to radio case, only need a 200 mAh eliminator at 15v for 6 hours.

May 31, 2009 | Maxon HCB-10 40-Channels Handheld CB Radio

1 Answer

Readings about a battery on WPLN4079 charger


Yes, it is possible. We see this many times with new or near new batteries. (Sidenote: While saying this we must note you can also get an incorrect reading if you are using the wrong battery cup/adapter. Just because the battery fits the cup doesn't mean it is the correct cup.)

Apr 16, 2009 | Motorola HT1000, MTS2000, MTX8000/9000...

1 Answer

I am Looking for a used Bellsouth FW13Z that does not charge.


I have two batteries are shot, still have chargers I'll sell them to you for $12.00 +S&H khatcher2001@verizon.net Kenny

Feb 27, 2009 | BellSouth FW13ZHS (14 Channels) 2-Way...

1 Answer

Free Set FW13Z Two-Way , One Working, Good Battries in both.


Big Al

responding to your message, yes I would like to take this offer, my email address is darnette_hill@bshsi.org.

raeleen

Jul 28, 2008 | BellSouth FW13ZHS (14 Channels) 2-Way...

1 Answer

Battery will charge if off of radio will not charge if attached to radio


look on the battery , you sould see a 3 digit code. EG if you see a code like 458 . this means week 45 ,2008 or if it is 123. this means week 12 at 2003. The motorola batteries last up to 2 yrs. if it older than 2 years old , replaced the battery

May 13, 2008 | Radio Communications

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