- Joined
- Dec 2, 2014
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- 22
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I recently built a laser using the survival lasers black anodized Host, copper extended heat sink, copper pill, 9mm 445nm diode from DTR with his 2.4A driver. Everything worked great at first, but I soon started having issues. I sent it back to DTR and he fixed it for me. He said that I probably put the batteries in backwards and reversed the polarity.
This leads me to my question. How are the batteries supposed to be inserted? I just assumed that the negative end should go toward the spring and the positive toward the battery board. Am I doing it backwards? Any help would be appreciated. I don't want to damage it again by putting the batteries in backwards.
This leads me to my question. How are the batteries supposed to be inserted? I just assumed that the negative end should go toward the spring and the positive toward the battery board. Am I doing it backwards? Any help would be appreciated. I don't want to damage it again by putting the batteries in backwards.