Question about Garmin Rino 110 (14 Channels) 2-Way Radio

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Batteries wearing out quickly

Batteries are wearing out after about 3 hours.  Batteries are also heating up when the radio is off.

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Re: Batteries wearing out quickly

Ok first maybe you have defective battery, the battery is now in leak condition! or maybe you have to clean the terminal of the battery!

Posted on Oct 21, 2007

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1 Answer

How do you recharge the batteries

With the radios shut off, plug them into the charger, then leave them for 3 hours or more. The batteries, if good, should be charged by then.

Jan 11, 2014 | Motorola T8500 Two Way Radio

1 Answer

Radio shack walkie talkie 21-1914 replaced batteries will not charge

Hi pearl,

A simple problem to solve at last!!!

Inside the battery compartment you should find a switch, which indicates Recharge/Normal, make sure you select recharge if your using these batteries, otherwise no charging occurs.

If this does not work, take out the recharchables and select normal on switch, place fully charged normal batteries into the compartment, making sure you put them in the right way around, close the flap and turn on the radio, if this works, then your battery switch is faulty, however, you can get lithium ion batteries, which will last longer than most other high duty batteries.

The cost of getting these radios is not worth the money, unless you are technically minded and buy the repacement switch and repair it yourself.

Otherwise try all of the above, and remember, when charging batteries that are rechargeable, never leave the radio on, as this can wear out your batteries quickly.

I hope this advice is helpful to you.

Best regards,

Jan 12, 2013 | Two-Way Radios

1 Answer

Motorola T6510 runs down battery quickly

these are one-way radios. no service, no spareparts. just trough away and buy new

Sep 04, 2012 | Motorola T6510 XLR Talkabout Two-Way...

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 bought 6 sets of Midland LXT 345 walkie-talkies for the teachers to use when they go out on the playground. Less than 1 year later several of them don't work. They keep them in their charges when...

The batteries have likely been damaged from being on the chargers too long. Try trading a known good battery into the non-working radios and see if it/they will work with a good battery. If so, replace your batteries, and then only put the radios on the charge when they need a charge, such as after the radios have been used 8-10 hours. Longterm charging can quickly age batteries. Life expectancy of a battery is 18-24 months with good care.

Best regards.

Sep 23, 2011 | Midland LXT385VP3 Two Way Radio

1 Answer

What's the quickest way to drain the battery?

Simply leave the radio turned on overnight. Most TalkAbout radios have a 12-18 hour battery life. Pressing the PTT button can also speed the process but is not recommended, as it would cause wear and tear on the radio, and possibly shorten the life expectancy.

FYI: The rechargeable batteries with the TalkAbout radios typically do not need discharged before recharging, as they are either NiMH or Li-Ion and have very little memory effect.

Best regards.

Apr 09, 2010 | Motorola Talkabout SX900R Two Way Radio

1 Answer

Batteries die quickly - unit gets hot

You may have a bad or shorted battery pack. You might try replacing it to see if the problem goes away. It would be normal, while charging for a battery to get warm. But not hot. Rechargeable batteries have a life expectancy of 18-24 months.

Oct 11, 2008 | Garmin Rino 120 2-Way Radio

1 Answer

Overheat/battery drain

Hello dogwillhunt,

It is normal for a two-way radio to generate some heat, especially during extended periods of long talk time. Consumer two-way radios tend to be much more susceptible to this because they tend to be constructed out of materials that do not dissipate heat very efficiently, such as polycarbonate and plastic. Periods of heavy transmit times also use additional power, causing the radio’s batteries to run down more quickly and require replacement or recharge. Use of the display backlight feature can generate additional heat and run the unit out of battery power even more quickly.

If the radio is heating up excessively and burning through batteries (pardon the pun) in situations where you are not using the LCD backlight excessively or transmitting for long periods of time, this may be indicative of a problem with the unit that would require service, such as a short or defective component. If such is the case, I would recommend contacting the manufacturer.

Agent Ken
Go Ahead. Use Us

Apr 07, 2008 | Garmin Rino 120 2-Way Radio

3 Answers

Batteries in my Rino 120 don't last very long

I believe its 3AA's and it SHOULD last 15 hrs of life. You should probably check the terminal heads and clean them real good you might be shorting somewhere in the connection.

Aug 02, 2007 | Garmin Rino 120 2-Way Radio

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