Modern Fishing Comes With Modern SolutionTime to make your Battle Force electric reel completely mobile. Instead of carrying those big, bulky car batteries or a jumper box, now you can lose the cords and use this battery pack to power your electric reels! Its specifically designed for deep drop and bottom fishing, which wont take much space in your tackle box. It comes in two sizes, 4800 mAh & 9800 mAh; this 12V power horse battery can last you at least a full day of fishing under normal use. Meaning it can deliver long-lasting power, more battery life, and a fast recharge so you can take your fishing adventure ANYTIME and ANYWHERE! Now, whats left is your freedom to choose your battleground.