Drop it in and get to fishing! Designed for use with any current VexilarA(R) Flash-Er/Pack Battery, this OEM Replacement Battery delivers twice the number of re-charging cycles over sealed SLA batteries. Plus, it weighs just 2.75 lbs. so it's half the weight of a normal Vexilar SLA battery. Drop-in OEM replacement LiFeP04 technology Delivers twice the number of re-charging cycles over sealed SLA batteries Replaces any current Vexilar Flasher/Pack battery 12V 9AH lithium battery Weighs just 2.75 lbs. Order today!