What may happen to a lead battery when overcharged?

acid leak
polarization switch
explosion
sulfurization
Any lead­-acid battery system when over­charged will produce hydrogen gas by elec­trol­y­sis of water. If the rate of over­charge is small, the vents of each cell allow the dis­si­pa­tion of the gas. A severe over­charge may produce a flammable con­cen­tra­tion of hy­dro­gen.

Answers distribution

acid leak
polarization switch
explosion
sulfurization
answers
flagFrance
16%
6%
66%
12%
50
flagSweden
7%
3%
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29%
27
flagItaly
18%
9%
56%
15%
32
flagMalaysia
21%
15%
56%
6%
32
flagPoland
22%
10%
52%
13%
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flagGermany
22%
6%
52%
18%
214
flagSouth Africa
28%
9%
52%
9%
21
flagCanada
23%
7%
50%
17%
67
flagUkraine
22%
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18
flagthe United Kingdom
24%
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flagPakistan
23%
13%
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10%
38
flagthe United States
26%
11%
46%
13%
922
flagIndia
23%
12%
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13%
496
flagAustralia
22%
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49
flagthe Netherlands
32%
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45%
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flagNorway
24%
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29
flagUnknown
29%
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85
flagRepublic of Ireland
30%
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flagthe Philippines
35%
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flagthe United Arab Emirates
20%
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Gender

men48%
women41%
acid leak
23%
26%
polarization switch
9%
17%
explosion
48%
41%
sulfurization
17%
14%

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What may happen to a lead battery when overcharged?
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Illustration: Charles Williams
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