ER14250 Adapter

prusaprinters

<p>Working on a commercial project that required long battery life but found I was only getting about a month on each ER14250. The target was 1-2 years on a ER14250. This required me to build a substitute battery that would be placed in the device so I could perform power measurements.</p><p>There is a flat side to allow easy printing with no supports.<br>The positive terminal is a hex drive socket cap screw - M3 6mm<br>The negative terminal is a hex drive socket cap screw - M5 8mm<br>the captive nuts match the screws.</p><p>Just wrap a loop of wire around each of the screws and tighten them down.<br>Bonus: You can easily check the voltage on the substitute battery by touching the probes to the captive nuts on the positive and negative sides.</p><p>It goes without saying, but the voltage applied to the battery adapter must match the voltage of the actual ER14250 battery it is replacing.</p>