Crown 12CRV100 98Ah 12VDC Maintenance Free AGM Battery

Frequently Asked Questions

What is the Crown 12CRV100 battery?
The Crown 12CRV100 is a 12VDC sealed AGM deep cycle battery rated at 98Ah at the 20-hour rate. It is designed for repeated charge and discharge use in renewable energy storage, backup power, RV, marine, and other deep cycle applications.

Why is the Crown 12CRV100 listed as 98Ah instead of 100Ah?
Crown's published specifications rate the 12CRV100 at 98Ah at the 20-hour rate. The model name identifies the product family rather than indicating an exact 100Ah rated capacity.

Is the Crown 12CRV100 a good choice for off-grid solar?
Yes. Its sealed AGM design and deep cycle construction make it suitable for off-grid solar energy storage. It can be a good option where a maintenance free lead-acid battery is preferred over a flooded battery that requires regular watering.

How much energy does the Crown 12CRV100 provide?
The Crown 12CRV100 is rated at 1.16 kWh at the 20-hour rate. The actual energy available to a solar system depends on discharge rate, temperature, battery condition, system losses, and how deeply the battery is discharged.

How many Crown 12CRV100 batteries are needed for a solar battery bank?
The required number depends on the system voltage and energy demand. Common series configurations include:

• Two 12VDC batteries in series for a 24VDC battery bank.
• Four 12VDC batteries in series for a 48VDC battery bank.
• Parallel connections can be used to increase amp-hour capacity while maintaining the same nominal voltage.

The complete battery bank should be sized according to daily energy use, desired backup time, solar production, inverter requirements, and acceptable depth of discharge.

Charging & Maintenance

What charging settings should be used for the Crown 12CRV100?
The Crown 12CRV100 should be charged with equipment that supports AGM batteries and is configured according to Crown's charging requirements. The solar charge controller should use an AGM-compatible charging profile rather than a setting intended for flooded batteries or another battery chemistry.

Does the Crown 12CRV100 require watering?
No. The 12CRV100 uses sealed AGM technology, so routine electrolyte watering is not required. This makes it different from flooded lead acid batteries that require regular electrolyte inspection and water replacement.

Can the Crown 12CRV100 be used with a flooded-battery charging profile?
The charging profile should match the AGM battery. Using an unsuitable charging profile can result in improper charging and may reduce battery performance or service life.

How can I maintain a Crown 12CRV100 in a solar system?
Maintenance is mainly focused on proper charging, clean and secure connections, suitable operating temperature, and avoiding prolonged undercharging or excessive discharge. Because it is sealed AGM, there is no routine watering schedule.

Can the Crown 12CRV100 be stored when it is not being used?
Yes, but the battery should be stored in an appropriate charged condition and protected from excessive heat and other unsuitable environmental conditions. Periodic monitoring can help prevent the battery from remaining discharged for an extended period.

Crown Battery Comparison

What is the difference between the Crown 12CRV80 and Crown 12CRV100?
The Crown 12CRV80 and Crown 12CRV100 are both 12VDC sealed AGM deep cycle batteries, but the Crown 12CRV100 provides higher capacity. The Crown 12CRV100 is rated at 98Ah at the 20-hour rate compared with 80Ah for the Crown 12CRV80.

How does the Crown 12CRV100 compare with Crown 12CRV110?
The Crown 12CRV100 and Crown 12CRV110 are both 12VDC sealed AGM deep cycle batteries. The Crown 12CRV110 provides 110Ah at the 20-hour rate compared with 98Ah for the Crown 12CRV100. The Crown 12CRV110 providing more capacity for systems where additional battery bank capacity is needed.

Solar Application & Battery Life

What solar systems are best suited to the Crown 12CRV100?
The Crown 12CRV100 is well suited to off-grid solar systems, backup power installations, remote power equipment, RV electrical systems, marine applications, and other renewable energy storage systems that use 12VDC or larger battery banks built from 12VDC units.

Can the Crown 12CRV100 run an inverter?
Yes, when the inverter is compatible with a 12VDC battery bank and the battery capacity and wiring are properly sized. Higher inverter loads can draw substantial current from a 12VDC battery, so the battery bank should be designed around the inverter's continuous and surge requirements.

Is the Crown 12CRV100 maintenance free for solar use?
Yes, the sealed AGM design does not require routine watering. However, maintenance free does not mean maintenance free of the entire system. Connections, charging performance, temperature, and battery condition should still be monitored.

How deeply should the Crown 12CRV100 be discharged in a solar system?
Avoiding unnecessary deep discharges can help reduce battery stress and support longer service life. Solar systems should be sized with enough battery capacity to meet expected loads without routinely taking the battery to very low states of charge.

What can cause a Crown 12CRV100 to lose capacity?
Battery age, repeated deep discharges, improper charging, prolonged undercharging, excessive temperature, and other operating conditions can reduce available capacity. If performance suddenly changes, check the charging system, connections, loads, and battery condition before replacing the battery.