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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 |
--0000000000007559f705a18da956 Content-Type: text/plain; charset="UTF-8" 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 > --0000000000007559f705a18da956 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <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>] <<a href=3D"mailto:geda-user AT delor= ie.com">geda-user AT delorie DOT com</a>> 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's not a good idea to discharge to= much current.<br> <br> > Both batteries measure 6.9V<br> > <br> > On Mon, Mar 23, 2020 at 2:41 PM Nicklas Karlsson (<br> > <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>] <<br> > <a href=3D"mailto:geda-user AT delorie DOT com" target=3D"_blank">geda-user AT d= elorie.com</a>> wrote:<br> > <br> > > > I'm wondering if anyone here has used LiPo 11.1V 3C batt= eries and the<br> > > > Tenergy Battery TB6B charger.<br> > > ><br> > > > I have batteries I've cycled (charged/discharged through= use) about 10<br> > > > times.=C2=A0 When I put them on the balanced charger for LiP= o 11.1V 2A and<br> > > they<br> > > > fail low voltage.=C2=A0 The google suggested fix is charge t= hem as NiMh 7.4V<br> > > > 0.2A which does bring them to 7.6V then charge them as LiPos= .<br> > > ><br> > > > The multiple times I've done this has worked.=C2=A0 Now = I'm getting them to<br> > > > charge to 7.6V as NiMh but they fail low voltage when I char= ge them as<br> > > LiPo<br> > > > 11.1V.=C2=A0 NOTE: they are not bulged nor do they get hot.<= br> > > ><br> > > > Any suggestions?=C2=A0 Should/could I bypass the balancer an= d charge<br> > > > individually?<br> > > ><br> > > > Thanks<br> > ><br> > > Either battery voltage is to low or charger is the problem. Measu= re<br> > > battery voltage?<br> > ><br> > ><br> > > Overloading is not good. While old style open lead-acid batteries= buble<br> > > like home brewn mash Lithium batteries tend to explode.<br> > ><br> > ><br> > > Nicklas Karlsson<br> </blockquote></div> --0000000000007559f705a18da956--
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