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Overcharge caused by overvoltage. The only I know of that causes an
explosion like that is hydrogen gas caused by overcharging along
with a source of ignition. That's why it is now recommended to
ground to the chassis, instead of the neg. terminal, when jump
starting. Note even 'maintenance free' batteries have vents. <br>
<br>
I ruined a battery on an 'old school trickle' charger; they are
constant current power supplies and will keep pumping electrons even
after the battery if fully charged. The newer smart chargers know
when to stop.<br>
<br>
bs<br>
<br>
<div class="moz-cite-prefix">On 7/3/2026 9:08 PM, Al Fuller wrote:<br>
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cite="mid:CADkpZwGmSssh=xb4Zn=Vx9wcv8z7VcvJVvPc22Vphsv78JEtSQ@mail.gmail.com">
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<div>Hard to think of anything better, but where the run off
will go is a consideration.</div>
<div dir="auto"><br>
</div>
<div dir="auto">I guess it goes without saying that careful PPE
is called for.</div>
<div dir="auto"><br>
</div>
<div dir="auto">What is causing the batteries to go? Overcharge?
Overvoltage? Short circuit?</div>
<div dir="auto"><br>
</div>
<div dir="auto">Something as dangerous as multiple batteries
going off calls for some serious investigation and root cause
analysis.</div>
<div><br>
</div>
<div data-smartmail="gmail_signature">________________<br>
Sent from my phone <br>
Best Regards,<br>
Al Fuller</div>
</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Fri, Jul 3, 2026, 7:49 PM
john niolon <<a href="mailto:jniolon@att.net"
moz-do-not-send="true" class="moz-txt-link-freetext">jniolon@att.net</a>>
wrote:<br>
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<div><font face="Segoe UI">had my second Walmart Neverstart
battery explode in my generator.....</font></div>
<div> </div>
<div><font face="Segoe UI">what's the best clean up material
for this Soda wash??</font></div>
<div> </div>
<div><font face="Segoe UI">john<img
style="HEIGHT:2175px;WIDTH:1352px" border="0"
hspace="0" alt=""
src="cid:part1.1m9hZS5h.XxQ0C0LV@comcast.net"
width="2140" align="baseline" height="2853" class=""></font></div>
</div>
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