Crown 12CRV80 80Ah 12VDC Maintenance Free AGM Battery

Frequently Asked Questions

What type of battery is the Crown 12CRV80?
The Crown 12CRV80 is a 12VDC sealed AGM deep cycle battery. Its absorbed glass mat construction contains the electrolyte within the battery, providing a non-spillable and maintenance-free design suited to renewable energy and other deep cycle applications.

Is the Crown 12CRV80 suitable for an off-grid solar system?
Yes. The Crown 12CRV80 is designed for renewable energy storage and can be used in off-grid solar systems where a sealed AGM battery is preferred. The system should be properly sized around daily energy use, charging capability, battery-bank voltage, and required backup time.

How much energy can the Crown 12CRV80 store?
The Crown 12CRV80 has an 80Ah capacity at the 20-hour rate and a rated storage capacity of 0.93 kWh at that rate. The amount of energy available to a solar system will vary with discharge rate, operating temperature, battery condition, and system settings.

Can the Crown 12CRV80 be used by itself in a solar system?
Yes, provided the solar system is designed for a 12VDC battery bank and the battery capacity is sufficient for the required loads. For larger energy requirements, multiple batteries can be connected according to the battery manufacturer's and system equipment manufacturer's requirements.

How can multiple Crown 12CRV80 batteries be connected?
Multiple batteries can be configured in series or parallel when the system design and equipment support the arrangement:

• Two 12VDC batteries in series create a 24VDC battery bank.
• Four 12VDC batteries in series create a 48VDC battery bank.
• Parallel connections increase available amp-hour capacity while keeping the nominal battery-bank voltage at 12VDC.

Battery banks should use properly matched batteries and appropriate wiring, overcurrent protection, and charging equipment.

What makes AGM useful for solar energy storage?
AGM technology eliminates the routine watering required by flooded lead acid batteries and provides a sealed, non-spillable construction. This can make the Crown 12CRV80 more convenient for solar installations where reduced maintenance is important.

Charging & Maintenance

What type of solar charge controller should be used with the Crown 12CRV80?
Use a solar charge controller that supports sealed AGM lead acid batteries and can be configured according to Crown's charging requirements. The charging profile should match the battery type rather than using settings intended for flooded or lithium batteries.

Does the Crown 12CRV80 need to be watered?
No. The Crown 12CRV80 is a sealed AGM battery, so routine electrolyte watering is not required. This is one of the main maintenance advantages over flooded lead acid batteries.

Can the Crown 12CRV80 be used with a regular lead acid battery charger?
It should only be charged with equipment that has an appropriate AGM charging profile. A charger intended for a different battery chemistry or an unsuitable charging profile can negatively affect battery performance and service life.

How can I help extend the life of a Crown 12CRV80 in a solar system?
Proper charging, avoiding unnecessary deep discharges, controlling operating temperature, and using correctly sized wiring and protection can help support longer service life. The battery should also be protected from prolonged periods of improper charge or discharge.

Does the Crown 12CRV80 require ventilation?
AGM batteries are sealed and have much lower gas release under normal operation than flooded batteries, but the installation should still follow applicable battery, equipment, and local safety requirements. Do not install the battery near ignition sources or in an environment outside its specified operating conditions.

Crown Battery Comparison

How does the Crown 12CRV80 compare with the Crown 12CRV100?
The Crown 12CRV80 and Crown 12CRV100 are both 12VDC sealed AGM deep cycle batteries, but the Crown 12CRV100 provides greater capacity. The Crown 12CRV80 is rated at 80Ah at the 20-hour rate, while the Crown 12CRV100 is rated at 98Ah. The 12CRV80 is therefore better suited when compact size is important, while the 12CRV100 provides more rated storage capacity.

What is the difference between the Crown 12CRV80 and Crown 12CRV110?
The Crown 12CRV80 and Crown 12CRV110 are both 12VDC sealed AGM batteries designed for deep cycle applications. The Crown 12CRV110 provides 110Ah at the 20-hour rate compared with 80Ah for the Crown 12CRV80. The Crown 12CRV80 is a better fit where space is limited, while the Crown 12CRV110 is suited to systems that need greater capacity from each battery.

Solar Application & Battery Life

What solar applications are a good fit for the Crown 12CRV80?
The Crown 12CRV80 can be used for off-grid solar storage, small renewable energy systems, backup power, RV electrical systems, marine electronics, and other applications requiring a compact 12VDC deep cycle battery. It is especially useful where sealed, maintenance-free AGM construction is preferred.

Can the Crown 12CRV80 power an inverter?
Yes, provided the inverter is compatible with a 12VDC battery bank and the battery bank is properly sized for the load. The inverter's continuous and surge requirements, wiring, battery capacity, and allowable discharge level should all be considered before installation.

How deeply can I discharge the Crown 12CRV80?
The battery can support deep cycle operation, but repeatedly using a large portion of its capacity can reduce service life. For solar applications, sizing the battery bank with adequate capacity rather than routinely operating at very low charge levels can help reduce battery stress.

Can the Crown 12CRV80 be installed in an indoor solar battery bank?
Its sealed AGM construction makes it suitable for applications where a non-spillable battery is preferred, but installation must still follow applicable electrical, ventilation, temperature, clearance, and safety requirements. The battery should be installed in a location appropriate for the equipment and environmental conditions.

What should I do if the Crown 12CRV80 is not holding a charge?
Check the charging equipment and settings first, then inspect the battery connections and system wiring. Confirm that the battery is receiving the correct charging profile and that the solar system is not leaving it chronically undercharged. If the problem continues after the system has been checked, the battery may require professional testing.