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你做电池异常过充,应该是空电池吧3 x/ `( w! q/ P t/ d
Overcharging of a rechargeable battery. The battery is charged under each of the
; ?4 p4 `( _6 x. ]* e4 Rfollowing conditions in turn.
7 M7 \/ C8 r" b3 R• The battery charging circuit is adjusted with the battery disconnected to give 106 % of
7 `( A- ?0 i+ X V% Zthe rated output voltage of the charger, or the maximum charging voltage available
9 Z( L( a6 S0 j8 t4 W# o: Yfrom the charger (without simulation of faults), whichever is the higher attainable
: b$ v6 [3 o4 T. ?6 ^' s" B0 Nvalue. The battery is then charged for 7 h.
! l6 j9 f2 z" J• The battery charging circuit is adjusted, with the battery disconnected, to 100 % of the+ r9 ~7 @/ x C/ z8 Z4 H/ t
rated output voltage of the charger. The battery is charged while briefly subjected to
9 V$ Z# R: J ?( r% B" x+ m' Hthe simulation of any single component failure that is likely to occur in the charging
+ I8 \: ~& a' J! Qcircuit and that results in overcharging of the battery. To minimize testing time, the! z: n# _0 S# U
failure is chosen that causes the highest overcharging current. The battery is then1 f. S, m9 {! g9 b0 h( s
charged for a single period of 7 h with that simulated failure in place. |
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