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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.
1) Clean all your battery contacts with a pencil eraser. This includes the contacts on the charger (if a drop-in style), battery and the radio.
2) Check your battery date code. It is a 4 digit number on the white portion of your battery. The first two numbers are the year, followed by the week of the year. (Example: 0946 would be 2009 the 46th week.) Your battery pack should be less than 2 years old to work correctly.
3) Check to see you are using the correct charger. The XTN style charger should have a white label on the cord indicating it is for the XTN radio.
You most likely have batteries which are failing or shorted out. It would be advisable to remove them from the radio and replace them with new batteries. Continued charging of shorted/bad batteries will damage your radio.
It's possible that the battery contacts have become corroded, or tarnished so that the batteries are not making contact with the battery case. DO NOT use steel wool to clean the contacts, as the steel wool shed little pieces into the battery case, and can cause a short circuit inside the radio. Use a brass brush to clean the battery contacts, then spray them with a product called DeOxit to prevent further tarnishing or corrosion. Good Luck,
The best source of info is Paul Hansen in Columbia, SC. He is an ICOM approved warranty service tech, and the last telephone # I have for him is: 1-864-222-3539. He fixed an ICOM IC-2100H for me four years ago, and I was very pleased with his work, and repair cost. At least, give him a call. I do not think you will be displeased with him.
The T6310 is a disposable radio. Assuming the programming is correct, and matching on each of your radios, and you are using good batteries, there is nothing which can be done to correct the problem. We would however, suggest you double check your programming, and also the age of your batteries.
Sidenote: Rechargeable batteries only last 18-24 months before they begin to fail. Signs of failure can include, but are not limited to, poor transmit, intermittent transmit, white noise, squelching sounds. It takes more energy to transmit than to receive, so your transmit would be the first to go.
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