Can You Charge A Marine Battery While Using It. Begingroup A real-world example of a charging source delivering less current than the load sometimes requires. Best Answer 10 years in the past You can use a vol.
However you also need to look at the voltage. The first is to charge the battery while its on the boat already in the fixed position. Use a charger that is designed to be hooked up and left.
Regulators should generally be used any time you have two or more large panels connected to your batteries.
The 12v 70 watt can output 16 to 24 Amps a day while the 12v 100 Watt can output 20 to 31 amps a day with the 12v 150 Watt offering 32 to 48 amps a day. A 6-amp charger would require over 9 hours while a 15-amp. This means that a 15A panel is the largest you should use without a regulator on a 100Ah battery. For example deep cycle batteries that are used for marine applications are designed for withstanding long-time charging.
