Hi
Has anyone experience of using these Li-ion 18650 batteries? I have used Li-ion AA 3.7 volt in series to give 7.4 volt in a small Kilo and phone batteries in a revell U boat both worked fine.
I am building a Moebius 39 inch Seaview and thought I would try a pair of the Li-ion 18650 as again fitted in a battery holder gives 7.4 volt and 4500mAh which fits nicely in the small WTC.
However on trials everything works ok but I run out of battery power in a few minutes. I believe
this model is reputed to run for 30 minutes on a Lipo 1300,mAh battery in the Caswell conversion and thought this would better the run time but NO.
I have tried other 18650 batteries and I have the correct charger.
I have no technical knowledge on batteries (is it that obvious?) so do I need to purchase a Lipo battery or ?
The hardware is a mini air pump 4 servos and two 280RS motors
advice welcome
My regards
Ian
Have tried loading photos without success To Big !!