As one who grew up watching the Energizer Bunny commercials, it is amazing to me how far the battery has come. People want them smaller, lighter, longer lasting than ever before. We want to use them in cars, lawn equipment and every electronic device under the sun. It can seem like a great injustice at times when a battery fails to hold its charge like it once did.
Without really realizing it we can adopt this “battery life” mentality for our walk with God. Francis Schaeffer identifies this when he writes,
“Some Christians seem to think that when they are born again, they become a self-contained unit, like a storage battery. From that time on, they have to go on their own pep and their own power until they die. But this is wrong. After we are justified, once for all through faith in Christ, we are to live in supernatural communion with the Lord every moment; we are to be like lights plugged into an electric socket. The Bible makes it plain that our joy and spiritual power depend on a continuing relation to God. If we do not love and draw on the Lord as we should, the plug gets pulled out and the spiritual power and the spiritual joy stop.”
What does your life in Christ resemble more: battery life or plug life? Batteries will likely continue to improve, holding more power for longer periods of time. But people won’t improve. We still need God like Adam, Eve, Moses, David, and Peter. That’s why Jesus compares us to a branch connected to a vine. Nothing cuts to the heart of our independent, self-sufficient desires. We were never intended to live an untethered life. You and I need God’s Word. We need to adore him, confess to him and ask for his help in prayer. That’s why Jesus invites us, not like the battery, but the like the plug to, “Abide in me” (John 15:4).
 Francis A. Schaeffer, Death in the City (Wheaton, IL: Crossway, 2002), 148.