Designed and constructed for compliance to UL-1236 Marine, CSA 22.2 No. 107.2, and ABYC A-31 standards. Ignition Protection per ISO 8846, and SAE J1171. Meets FCC Part 15, Class B requirements. IP67-protected against immersion up to 1 meter for 30 minutes. AC charging at the dock: Use AC shore power to charge two isolated battery banks with the 3 Stage 20 Amp battery charger. DC charging away from the dock: Share the DC power from the alternator with both the Start and the Auxiliary battery through the integrated 65A ACR. Battery Temperature Compensation prolongs battery life. Start isolation protects sensitive electronics from voltage sags and spikes. Includes LED remote indicator for charge status at the helm. Snap-on insulating cover. One-piece stainless flange nuts ensure safe and secure connections. Product quality is managed in a manner consistent with international standards. Quality products engineered for the harsh marine environment.