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From: "Rob Butts (r DOT butts DOT geda AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date: Mon, 23 Mar 2020 19:04:38 -0400
Message-ID: <CAM7eQ1=FWcNtkPP36Qy9_mPViH+UKr06kf-oyYDucaqV2Smh7A@mail.gmail.com>
Subject: Re: [geda-user] Tenergy TB6B LiPo Charger
To: geda-user AT delorie DOT com
Reply-To: geda-user AT delorie DOT com

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It is a 11.1v battery unit made up of individual LipPo batteries.  There is
no way to charge them individually.

On Mon, Mar 23, 2020 at 4:32 PM Nicklas Karlsson (
nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] <
geda-user AT delorie DOT com> wrote:

> Here https://en.wikipedia.org/wiki/Lithium_polymer_battery at the section
> charging is something about the voltage. Might be it's not a good idea to
> discharge to much current.
>
> > Both batteries measure 6.9V
> >
> > On Mon, Mar 23, 2020 at 2:41 PM Nicklas Karlsson (
> > nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] <
> > geda-user AT delorie DOT com> wrote:
> >
> > > > I'm wondering if anyone here has used LiPo 11.1V 3C batteries and the
> > > > Tenergy Battery TB6B charger.
> > > >
> > > > I have batteries I've cycled (charged/discharged through use) about
> 10
> > > > times.  When I put them on the balanced charger for LiPo 11.1V 2A and
> > > they
> > > > fail low voltage.  The google suggested fix is charge them as NiMh
> 7.4V
> > > > 0.2A which does bring them to 7.6V then charge them as LiPos.
> > > >
> > > > The multiple times I've done this has worked.  Now I'm getting them
> to
> > > > charge to 7.6V as NiMh but they fail low voltage when I charge them
> as
> > > LiPo
> > > > 11.1V.  NOTE: they are not bulged nor do they get hot.
> > > >
> > > > Any suggestions?  Should/could I bypass the balancer and charge
> > > > individually?
> > > >
> > > > Thanks
> > >
> > > Either battery voltage is to low or charger is the problem. Measure
> > > battery voltage?
> > >
> > >
> > > Overloading is not good. While old style open lead-acid batteries buble
> > > like home brewn mash Lithium batteries tend to explode.
> > >
> > >
> > > Nicklas Karlsson
>

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<div dir=3D"ltr">It is a 11.1v battery unit made up of individual LipPo bat=
teries.=C2=A0 There is no way to charge them individually.</div><br><div cl=
ass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Mar 23, 2=
020 at 4:32 PM Nicklas Karlsson (<a href=3D"mailto:nicklas DOT karlsson17 AT gmail=
.com">nicklas DOT karlsson17 AT gmail DOT com</a>) [via <a href=3D"mailto:geda-user AT de=
lorie.com">geda-user AT delorie DOT com</a>] &lt;<a href=3D"mailto:geda-user AT delor=
ie.com">geda-user AT delorie DOT com</a>&gt; wrote:<br></div><blockquote class=3D"=
gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(20=
4,204,204);padding-left:1ex">Here <a href=3D"https://en.wikipedia.org/wiki/=
Lithium_polymer_battery" rel=3D"noreferrer" target=3D"_blank">https://en.wi=
kipedia.org/wiki/Lithium_polymer_battery</a> at the section charging is som=
ething about the voltage. Might be it&#39;s not a good idea to discharge to=
 much current.<br>
<br>
&gt; Both batteries measure 6.9V<br>
&gt; <br>
&gt; On Mon, Mar 23, 2020 at 2:41 PM Nicklas Karlsson (<br>
&gt; <a href=3D"mailto:nicklas DOT karlsson17 AT gmail DOT com" target=3D"_blank">nick=
las DOT karlsson17 AT gmail DOT com</a>) [via <a href=3D"mailto:geda-user AT delorie DOT com"=
 target=3D"_blank">geda-user AT delorie DOT com</a>] &lt;<br>
&gt; <a href=3D"mailto:geda-user AT delorie DOT com" target=3D"_blank">geda-user AT d=
elorie.com</a>&gt; wrote:<br>
&gt; <br>
&gt; &gt; &gt; I&#39;m wondering if anyone here has used LiPo 11.1V 3C batt=
eries and the<br>
&gt; &gt; &gt; Tenergy Battery TB6B charger.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; I have batteries I&#39;ve cycled (charged/discharged through=
 use) about 10<br>
&gt; &gt; &gt; times.=C2=A0 When I put them on the balanced charger for LiP=
o 11.1V 2A and<br>
&gt; &gt; they<br>
&gt; &gt; &gt; fail low voltage.=C2=A0 The google suggested fix is charge t=
hem as NiMh 7.4V<br>
&gt; &gt; &gt; 0.2A which does bring them to 7.6V then charge them as LiPos=
.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; The multiple times I&#39;ve done this has worked.=C2=A0 Now =
I&#39;m getting them to<br>
&gt; &gt; &gt; charge to 7.6V as NiMh but they fail low voltage when I char=
ge them as<br>
&gt; &gt; LiPo<br>
&gt; &gt; &gt; 11.1V.=C2=A0 NOTE: they are not bulged nor do they get hot.<=
br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; Any suggestions?=C2=A0 Should/could I bypass the balancer an=
d charge<br>
&gt; &gt; &gt; individually?<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; Thanks<br>
&gt; &gt;<br>
&gt; &gt; Either battery voltage is to low or charger is the problem. Measu=
re<br>
&gt; &gt; battery voltage?<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; Overloading is not good. While old style open lead-acid batteries=
 buble<br>
&gt; &gt; like home brewn mash Lithium batteries tend to explode.<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; Nicklas Karlsson<br>
</blockquote></div>

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