They are a fine charger.
PROMARINER PROSPORT 20 PLUS GEN 3 HEAVY DUTY RECREATIONAL SERIES ON-BOARD MARINE BATTERY CHARGER - 20 AMP - 3 BANK
It's all coming together and we have you covered @ Shut-Up-And-Fish LLC
for all your Humminbird, Minn Kota & Motorguide needs.
We install & educate as well!!! 972 822 9285