LiPo Characteristics Part 3: Internal Resistance

LiPo Characteristics Part 3: Internal Resistance

In Part 2 of this series we took a look at how LiPo cells behave electrically over a discharge cycle. There were a few observations (like voltage sag) that can’t be explained by applying Ohm’s Law directly. Internal resistance is a metric that aims to explain some of these properties. Why is Internal Resistance Important? Read more about LiPo Characteristics Part 3: Internal Resistance[…]

LiPo Characteristics Part 2: Electrical Properties

LiPo Characteristics Part 2: Electrical Properties

In the previous post of the series, I outlined some basic information about this study. In this post, I’ll start diving in to the data to see what it tells us about LiPo characteristics. I’d recommend you give part 1 a read to familiarize yourself with the method I used to collect data. A word Read more about LiPo Characteristics Part 2: Electrical Properties[…]

LiPo Characteristics Part 1: Introduction

LiPo Characteristics Part 1: Introduction

Introduction Recently, I became curious about LiPo characteristics and quirks. What causes the drop-off in responsiveness over time? Why does power seem to fall off a cliff at the end of capacity? Why do throttle punch outs cause my flight controller to brown out when the battery is low? What makes one battery better than Read more about LiPo Characteristics Part 1: Introduction[…]

DIY Charging Harness for 1S Batteries

If you fly micro/nano quads, you probably use a bunch of single cell LiPos. The balance charger I use for my 3S and 4S packs (Accucel S60) doesn’t support 1S batteries. In order to take advantage of some of the features of the charger (charge/discharge to storage, measuring IR, etc) I decided to make a Read more about DIY Charging Harness for 1S Batteries[…]