<div dir="ltr">I interchanged the wires and charged my batteries and have a moving Donkey car now. Thanks Doug and Harold.<div><br></div><div>Regards.</div><div>- Kumar</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 2, 2021 at 1:25 PM Thalanayar Muthukumar <<a href="mailto:tnkumar@gmail.com">tnkumar@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr">Thanks Doug for your quick response.<div><br><img src="cid:ii_kvieunq42" alt="image.png" width="472" height="404"><br></div><div><br></div><div>This is how my battery connector looks (Red wire to the square hole and black wire to the round hole)</div><div>On the terminal connector that connects to the battery, they have connected the Red to round and black to square (certainly an error)</div><div><br></div><div>Doug -> As you say, I do believe it is a bad terminal connector and I am glad that I did not plug it into the wall and to the battery. <br></div><div>I can see if I can interchange the wires on the connector, or get a new connector.</div><div><br></div><div>Regards.</div><div>- Kumar</div><div><br></div><div><br><br><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 2, 2021 at 10:57 AM Doug Paradis <<a href="mailto:paradug@gmail.com" target="_blank">paradug@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Kumar,<div> Looks like a true issue with the wiring. Do not plug into the wall until you sort it out. With the battery disconnected, measure the voltage at the last connection. Is the polarity of the voltage reversed (ie., black to red positive)? I am assuming that the purpose of the additional bit of wire is to match the terminals of the battery. Please show a picture of the end of the battery connector so we can tell what type it is. Same for the connector that is going into the battery connector now. Connectors have a specification that can be looked up on the web. It looks like you have a bad terminal converter.</div><div><br></div><div>Regards,</div><div>Doug P.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Nov 1, 2021 at 10:52 PM Thalanayar Muthukumar via DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><div dir="ltr">This is how my current Donkey Car battery looks<br><img src="cid:ii_kvhgdow30" alt="image.png" width="272" height="452"><br><div>The voltage between Red and Black is ~2.1V with Red being positive with respect to the black. This is because the battery has been lying unused for years.<br><br>When I connect the charger to mains and measure voltage, it is ~14V with Red wire being positive with respect to black. (It is expected to be high as it is no load voltage)<br><br>The picture below shows how the charger connector mates with the battery<br><br></div><div><img src="cid:ii_kvhgiktd1" alt="image.png" width="339" height="452"><br><br>If you see the mating point marked with Red Arrow, the red wire from the charger is connected to the black of the battery and black from the charger to the red of the battery<br>It does not seem correct to me.<br><br></div><div>This is the charger I got - <a href="https://www.amazon.com/dp/B088NTQRFF?psc=1&ref=ppx_yo2_dt_b_product_details" target="_blank">https://www.amazon.com/dp/B088NTQRFF?psc=1&ref=ppx_yo2_dt_b_product_details</a></div><div><br></div><div>Am I missing something or is the charger not correct?<br></div><div>I hesitate to power the charger and connect to the battery.<br><br>Suggestions?</div><div><br></div><div>Regards.</div><div>- Kumar</div></div>
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