pretty cool. Check this out if you use electric reels
Electric Fishing Reel Lithium Battery. 20000Mah Bangladesh
How to Safely Charge and Store Lithium Drone Batteries
Battery Choices for Electric Reels (and things to watch out for!)
When charging the battery, the positive and negative poles of the charger must not be reversed, otherwise the charger will be burned out.
12V-17500Mha Rechargeable Lithium Batterries for Sea Fishing Vessels and for Electric Fishing Reel Lithium Battery . Compatible for Daiwa&Shimano
Electric Reel Power - Jump Starter?
Electric Reel 2-Core Lithium Ion Battery, Small Edition, 3,500 mAh, Compatible with Daiwa Shimano Electric Reel, Compatible with Daiwa/ Shimano
Energizer Lithium-ion Jump Starter/Battery Charger, with Portable USB Charger, 550-Amp, 12V
Electric Reel Battery Recommendations
XF PORTABLE LITHIUM BATTERY LD01A - TCE Tackles
12V 12AH Replaces Daiwa 500 Electric Fishing Reel + 12V 1Amp Charger
Energizer Arc5 500Wh Lithium-Ion Portable Power Station
Electric Reel Power - Jump Starter?
DEWALT 20V MAX Lithium-Ion Corded/Cordless Air Inflator (Tool-Only)