
To get the best performance from your Celestron 18777 PowerTank 17 12V Power Supply, initial charging is key. When you first get your PowerTank or if it has been stored for a while, charge it for 15 to 20 hours. For regular charging after that, expect it to take about 10 to 12 hours. Keep an eye on the yellow light, which indicates a low battery. If you use the PowerTank until this light comes on, the recharge time could increase to up to 20 hours. Following these charging times will help keep your PowerTank working well and lasting a long time.


