Re: Tender wire spark

Posted by Don Shields On 2018/7/16 22:12:45

As Howard notes above, the exposed pin on the connector is negative and should it touch metal anywhere on a positive ground car you'll get the sparks. What I did was cut the wiring going to the battery terminals and reverse-spliced them back together. This gives you a positive-grounded exposed pin so the fireworks won't happen. This doesn't affect the tender's performance at all. Just be sure not to reuse that wiring on a negative ground car.