Thread: Battery Tests, Homemade 3000mAh XL Battery & Q&A (POST #1) - New Layout
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jurop88 is offline jurop88
2011-08-05 , 15:53
Posts: 370 | Thanked: 443 times | Joined on Jan 2006 @ Italy
#892
Hi all,

it's more than a week I am trying to measure my dual Japod's health without success. First that

Originally Posted by shadowjk View Post
If it runs for too long at 6%/0%, it will reject the learn cycle on basis that such a sudden dramatic capacity increase is "impossible".

Solution: follow charging progress (from empty) using "./bq27200.sh 5". When RSOC hits 100%, continue charging 15-30 minutes, then disconnect charger and follow the instructuins posted earlier for calibrating.
Thanks to Shadowjk who perfectly explained why the charging shall be executed in incremental steps going from a single to a dual battery setup, now I am able to run until the out of juice point with VDQ=1.
The problem I am facing now is that some watchdog invokes a reboot when my battery tension is still in the 3300ma range. No way for me to get to the 3248ma point! I tried a cycle during which i closed all active progs (but an xterm with bq2700.sh -5 running) and disabled everything radio-related around 3400ma going to offline mode, then patiently waited looking at the tension. When first 329x ma tension appeared, it had been matter of second before seeing my N900 turning off with message "recharge battery NOW" (or what the message is in English language, mine is Italian).

Any clue on what am I missing?
 

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