Information About Replacing Your Motorola PR400 Batteries

Our Motorola PR400 radios include information that helps you calculate when you need to replace your Motorola PR400 batteries.Ai?? All of the radios are assembled with a date code located on the inside of your battery.Ai?? This date code allows you to tell when the appropriate time is to replace your battery for your PR400. The date code is located on the white sticker inside of your battery. In the middle is the part number (example: NNTN4851A) and to the right of your part number is the date code, which is 4 digits long.

Motorola PR400 Battery - NNTN4497CR Battery

The first two numbers of the date code indicate the year the battery was manufactured. The second two are equivalent to the week of that same year. Example: 1243 is the 43rd week in 2012. You can simplify this by dividing the week by 4 to calculate the month that the battery was manufactured.

Once you have the date code calculated, this will tell you when you are due for a PR400 replacement battery. It will usually be one year after the given date.

For futureAi??battery care:

Motorola two way radio battery advice

How to check two way radio battery ago:
  1. Look for the 3 digit date code on the front of your battery.
  2. The 1st number stands for the year, 2nd and 3rd numbers stand for the week of the year the battery was manufactured.
  3. If the date is more than 1.5 years old, you should replace the battery.
  4. This battery on the left was made during the week of December 17, 2006, or week 51, 2006.

Motorola Two Way Battery Care

  • Charge your new battery overnight before using it. This is referred to as “initializing” and will enable you to obtain maximum battery capacity.New Motorola IMPRES batteries, when inserted into a Motorola IMPRES charger, will indicate a calibration cycle by displaying a steady yellow light on the charge status indicator. Allow this calibration process to complete by not removing the battery from the charger until it’s fully charged and displays a steady green light.
    • Nickel Cadmium or Nickel Metal Hydride: Charge 14-16 hours
    • Lithium-ion/Polymer: Charge 1-2 more hours after the charger light turns green.
  • In order to minimize capacity loss and cycle life reduction, new, non-initialized batteries must be stored in well ventilated, cool and dry locations. Batteries stored in these conditions may be stored:If used batteries are to be removed from service for extended periods (greater than 30 days) they should be discharged to about 50% of their capacity. Store in a cool, dry, location.
    • Nickel Cadmium up to 2 years.
    • Nickel Metal Hydrive up to 18 months.
    • Lithium-ion Polymer up to 18 months.
  • Charge a new battery after it is fully discharged (Lithium Ion batteries can be recharged at any time).
  • DO NOT use the battery charger as a radio stand; continuous charging will shorten the battery life.
  • Keep spare batteries for swapping out when your battery needs to be recharged. This is the most cost effective solution for users requiring longer operating time.
  • Batteries that are in storage for more than two months need to be recharged:
    • Nickel Cadmium or Nickel Metal Hydrive: Charge 14-16 hours
    • Lithium-ion/Polymer: Charge 1-2 more hours after the charger light turns green.
  • When using a Motorola rapid charger, leave the battery in the charger for an additional 1-2 hours after the steady green light appears. Applies to non-IMPRES batteries only.
  • Only charge a battery when it needs it. If it is not fully discharged, do not recharge it.
  • Do not return fully charged non-IMPRES batteries to the charger for an ‘extra boost.’ This action will significantly reduce cycle life.
  • With proper care, batteries should last about a year and a half..

Battery Analysis

Two-way radio batteries are central to the proper functioning of your radios. Many radio users are unaware that their radio batteries are close to expiring or losing power. A lifeless battery can cause many radio failures and warning signs are a first clue to a potential problem (see battery care on the advice page). For many operations radios are used on multiple shifts and are not cared for or inspected on a regular basis. Good quality Motorola radios are meant to last even in the most harsh where can i buy diflucan 1. #Buy Diflucan Canada. fluconazole 150 mg canada. environments, however, your radio is only as good as the battery inside.

Our new FREE Battery Analysis service is kamagra jelly for sale. #purchase Kamagra. amazon kamagra oral jelly. designed to get a current reading of your battery status. The new system is called the Battery Optimizing System. This system provides fast, effective and accurate readings of the battery health and can accommodate most any battery.


Call Two Way Direct at 888-742-5893 and have them help you out if you have any questions about your date code!