Did you know your old trusty cell phone charger is actually doing you a disservice? Yep, it turns out standard cables aren’t equipped to stop charging once your battery is full — resulting in wear on your battery over time. But don’t worry, just let the Charby Sense Charging Cable take over. It’s available now in the iPhone Hacks Deals Hub for just $28. That’s 28% off the usual price of $39.