ACTUALLY TWO QUESTIONS . DO YOU USE TAP WATER OR DISTILLED WATER TO TOP OFF BATTERIES ? QUESTION 2 : WHEN I RETURN FROM FISHING AND CHARGE THE BATTERIES (USUALLY SAT NIGHT )THE NEXT FRIDAY WHEN PREPARING FOR THE NEXT TRIP ,I MAY HAVE TO RECHARGE FOR SEVERAL HRS. TILL THEY ARE FULLY CHARGED ? ARE THEY ABOUT SHOT ? STILL HAVE NEVER FAILLED TO FINISH A DAY'S FISHING .