PACNWComms Posted December 20, 2022 Report Share Posted December 20, 2022 For those that enjoy using the Motorola XPR3xxx/7xxx/e series radios, here is one cautionary note. I had a group that wanted to buy new Motorola batteries but did not like the price or the delivery time, about 3-5 months wait to get them. So, instead they purchased two dozen batteries, what they thought were Motorola PMNN4409AR 7.4V Lithium-Ion batteries. They purchased these through Grainger, as someone in the group had a construction company and an account with them. Knowing that I often use a XPR7550e radio for GMRS, and working with radios for years, they asked me why the batteries often did not take a charge. Or the charger acted odd when the batteries were placed into them (single cup Motorola IMPRES charger and 6-bank versions). Users in this group said some batteries would charge, but maybe not charge all the way the next day. This was a group that was interested in starting their own community emergency response type of team. On a whim, I asked if the serial numbers were all the same on the batteries? they said they did not recall seeing serial numbers. I told them to look closer. They gathered half of the batteries and checked them. They all had the same serial number. Luckily, the person with the Grainger account was a good customer, and they will be checking this from whomever they purchased these from as well. Motorola batteries should all have a unique serial number. Radioguy7268 1 Quote Link to comment Share on other sites More sharing options...
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