|
|
你做电池异常过充,应该是空电池吧7 b5 a# x& d8 A" T$ Q
Overcharging of a rechargeable battery. The battery is charged under each of the$ p1 r. Q7 e4 u9 Q
following conditions in turn.
8 U/ A8 Y- |9 B' P1 Z+ L6 R• The battery charging circuit is adjusted with the battery disconnected to give 106 % of: z c# W) k" ]' _1 O1 X+ X1 `
the rated output voltage of the charger, or the maximum charging voltage available
% B# k {; x$ T' T% _' bfrom the charger (without simulation of faults), whichever is the higher attainable! u0 b2 O% G' @2 `8 i- Q
value. The battery is then charged for 7 h.# a5 @* j: r, Z9 k" O/ F
• The battery charging circuit is adjusted, with the battery disconnected, to 100 % of the( J3 J; q: f# ^3 B& y5 H
rated output voltage of the charger. The battery is charged while briefly subjected to
7 H5 K7 z; W6 f0 qthe simulation of any single component failure that is likely to occur in the charging
+ l2 x, p; s% {7 G2 o6 Y& ocircuit and that results in overcharging of the battery. To minimize testing time, the: |; z" V: G3 X3 t1 r
failure is chosen that causes the highest overcharging current. The battery is then
$ k; P: @& \' K1 w2 T: ocharged for a single period of 7 h with that simulated failure in place. |
|