[MRCG] BB 2590 Li Ion Batteries
W2HX
w2hx at w2hx.com
Sun Apr 12 07:42:20 EDT 2015
Your battery sounds fine. My ch003 charger also says 90% and then never goes beyond that. Battery itself should not have any leds in them. only an LCD bargraph. They bars get dark when that segment is full. I think there are 5 segments. I think you're ok
-----Original Message-----
From: MRCG [mailto:mrcg-bounces at mailman.qth.net] On Behalf Of N5WV
Sent: Sunday, April 12, 2015 12:44 AM
To: West Coast Military Radio Collectors Group
Subject: [MRCG] BB 2590 Li Ion Batteries
Group , I purchased some new old stock BB 2590 Li Ion batteries. I charged them with a new Ultralife CH 003 charger. The charger has charge indication lights on it. One reads Over 90 Percent Charged. This is as far as the charger will take them. I charged two BB 590 nicad batteries and after charging the 90 % Charged indicator lights are off showing fully charged. Also the BB 2590 has battery power level indicator segments atop it. When fully charged all four should be green. I believe each segment is 25 %. After my charger gets the BB 2590 to the over 90 % charged level I do not see any segments showing green. They are dark looking. But I have never seen a fully charged BB 2590 and may not be looking at the indicators correct. They may be dark green ? Does anyone here have any experience charging a BB 2590 battery ? Are the status indicators atop the batteries supposed to glow bright green or are they dark ? Also is it common for BB 2590 batteries to only charge up to the mi d 90 % range ? These are new old stock batteries with a 2011 date on them. They were in factory sealed boxes. It may be that Lion batteries must be fully charged within months of manufacture or they go bad.. I am going to see how long these batteries will last with my radio receiving the Nation Weather Service transmission in my area. I am also looking for a vhf dummy load so I can transmit to test the batteries on tx. If anyone has any experience with new old stock BB 2590 batteries please let me know. Thanks , Randy Ballard N5WV ______________________________________________________________
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