ODIN
TECH GOD!
Official Answer
For your Norsk 14.8v Portable sonar battery you must use a 16.8v Lithium-Ion Norsk Charger which will be orange as well in correspondence to the battery
For our 14.8v15ah and 14.8v20ah you can only use the 3a 16.8v Norsk Charger
For our 14.8v30ah and 14.8v50ah you can either use the 3a 16.8v Norsk Charger, or if you would like a quicker charge time you can use our 7a 16.8v Rapid Charger
Answered by Odin TECH GOD!