Your external battery is doing the heavy lifting, but you can't see what's going on under the bonnet. This Powertech DC control box gives you a clear voltage readout so you know exactly where your system sits before something drains overnight. Clean connections, visible numbers, no more pulling out a multimeter every time. Add it to your build and stop guessing
| brand | Powertech |
| retailer | Jaycar |
| category | Electronics & Components |
| subcategory | Tools & Soldering |
| sku | HB8520 |
