Electric kite reels and deep drop reels both need steady 12V power, and a bulky lead-acid battery on deck is the traditional way to get it. The Black Oak lithium electric fishing reel battery replaces that setup with a compact, waterproof pack built specifically for electric reels, in two sizes depending on how you fish.
Shop both sizes in the Electric Fishing Reel Batteries collection, which also carries the reel cords, waterproof case, and lithium chargers covered below.
Why a Dedicated Reel Battery
Electric reels draw steady current over a long soak or a full day of kite fishing, which is a different load profile than starting an engine or running deck lighting. The Black Oak reel batteries use LiFePO4 (lithium iron phosphate) cells, which hold a flatter voltage curve through most of their charge than a lead-acid battery, so the reel keeps running at consistent speed instead of slowing down as the battery drains. Both sizes are IP67 rated, sealed against salt spray, rain and humidity, and ship in a neoprene holster with a sling so the pack stays out of the way on deck rather than rolling around in a hatch.
5Ah vs 10Ah: Which Size Fits Your Fishing
The 5Ah battery is the lighter, more compact option, built for electric kite reels and shorter deep drop sessions where minimizing weight on the kite line or on deck matters most. The 10Ah battery carries roughly double the capacity in a taller case, sized for a full day of deep dropping or for anglers who also want to run a Black Oak LED pod light off the same pack once the reel work is done. If you fish long days offshore or run lights off the same battery, size up to the 10Ah; if the pack rides on a kite line or you fish shorter sessions, the 5Ah keeps things lighter.
Matching the Cord to Your Reel
The 10Ah battery ships with a power cable included; the 5Ah battery does not include a cord, since reel connectors vary by brand and model. The reel battery cord is available in three fitments: Daiwa Tanacom / Beast Master / Seaborg 500 to 750, Seaborg MJ800 to MJ1200, and Banax Kaigen. Check your reel model against the fishing reel compatibility guide before ordering to make sure you get the connector that actually fits your reel.
Keeping the Battery Protected
Both batteries are IP67 sealed on their own, but an optional waterproof carry case adds a rugged shell and a precision-fit foam interior for transport and storage between trips, useful if the battery rides in a rod locker or truck bed on the way to the dock.
Charging and Everyday Use
Each battery ships with a 2A charger sized for it; a full charge from empty is measured in hours, not the overnight-plus wait a comparable lead-acid deep cycle battery needs. Between trips, a lithium battery holds its charge far longer than lead-acid when sitting unused, so a battery charged before the season is still close to full when you grab it for an early trip.
Frequently Asked Questions
Can one battery power both my reel and my LED lights? Yes. The reel battery outputs standard 12V power, so with the correct connect cord it can also run a compatible Black Oak LED pod light once the reel work is done for the day.
Do I need the 10Ah if I only fish half-day trips? Not necessarily. The 5Ah covers most half-day kite and deep drop sessions; size up to the 10Ah if you regularly fish full days or want to power lights off the same pack.
Will the connector fit my reel brand? Check the compatibility guide first. The three available cords cover Daiwa Tanacom, Beast Master, Seaborg (both 500-750 and MJ800-1200), and Banax Kaigen reels; ordering the wrong cord is the most common fit issue.
Is LiFePO4 safe to store on a boat? Lithium iron phosphate is a stable lithium chemistry that does not use the cobalt-based cells associated with thermal runaway risk in some other lithium batteries, and each Black Oak reel battery includes a battery management system that manages charging and discharge.
Shop both sizes, the reel cords, and the waterproof case in the Electric Fishing Reel Batteries collection.
