RedM Posted December 1, 2007 Share Posted December 1, 2007 1. Why doesn't the battery charge when you are plugged into the mains but using the computer? 2. Why can't you run a laptop from the mains without a battery in? 3. Do these only apply to my Thinkpad T20? Link to comment Share on other sites More sharing options...
jamesmark Posted December 1, 2007 Share Posted December 1, 2007 1. Why doesn't the battery charge when you are plugged into the mains but using the computer? 2. Why can't you run a laptop from the mains without a battery in? 3. Do these only apply to my Thinkpad T20? 1. Mine does. 2. Yes you can. 3. Probably. Link to comment Share on other sites More sharing options...
Scott Posted December 1, 2007 Share Posted December 1, 2007 Only applies to your lappy Mine charges until full when being used. Once full, the power light is on but the charging light isn't I can run my laptop without the battery in. I can even take the battery out while using the lappy. Dunno if its an issue with your lappy or not. Scott =op Link to comment Share on other sites More sharing options...
michael Posted December 1, 2007 Share Posted December 1, 2007 1. Why doesn't the battery charge when you are plugged into the mains but using the computer? It should. 2. Why can't you run a laptop from the mains without a battery in? You can. 3. Do these only apply to my Thinkpad T20? They shouldn't. Does this help... http://www-307.ibm.com/pc/support/site.wss/license.do?filename=mobiles/1xu105u1.exe Could just need the IBM specific power management stuff installing. Link to comment Share on other sites More sharing options...
carl0s Posted December 1, 2007 Share Posted December 1, 2007 Are you sure you're using the correct AC adapter? Does the voltage and current ratings of your adapter match what the laptop has printed underneath? Link to comment Share on other sites More sharing options...
RedM Posted December 1, 2007 Author Share Posted December 1, 2007 1. I'm guessing it does charge but very slowly. It charged a battery to 65% in about 2.5 hours and an extra 1% took about ten minutes. I'm leaving it a few hours to see if it reached 100% 2. I can run the laptop without a battery in. I erm...*sheesh* plugged it in and when the little battery light (then thought to be the power light) didn't come on assumed that the batt needed to be in. Link to comment Share on other sites More sharing options...
michael Posted December 1, 2007 Share Posted December 1, 2007 Is this your new battery? Link to comment Share on other sites More sharing options...
RedM Posted December 1, 2007 Author Share Posted December 1, 2007 It is. Charged to 100% this morning. Ran flat in about 90 minutes. I've read that they often need 'cycling' a few times (running right down and then charging back up as the cells will need to 'come alive') however the second full charge has only gone up to 69% after three hours! I think I've read that there is a battery life software glitch that sometimes give an incorrect reading. Any ideas? Link to comment Share on other sites More sharing options...
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