Frequently Asked Questions
What is the Crown 6CRVGC2H battery?
The Crown 6CRVGC2H is a 6VDC deep cycle AGM battery rated at 245Ah at the 20-hour rate. It is designed for repeated charging and discharging in applications such as solar energy storage, backup power, RVs, marine equipment, and other deep cycle systems.
Is the Crown 6CRVGC2H suitable for solar power systems?
Yes. The Crown 6CRVGC2H is designed for deep cycle energy storage and can be used in off-grid and backup solar systems. Its AGM construction is especially useful where regular watering and electrolyte maintenance are not desirable.
How much energy does the Crown 6CRVGC2H store?
The Crown 6CRVGC2H is rated at 245Ah at 6VDC and provides 1.43 kWh of rated storage at the 20-hour rate. Actual usable energy depends on discharge rate, depth of discharge, temperature, battery condition, and the design of the solar system.
How many Crown 6CRVGC2H batteries are needed for a solar battery bank?
The number depends on the required system voltage and the amount of energy storage needed. Since each battery is 6VDC:
- Two batteries connected in series create a 12VDC battery bank.
- Four batteries connected in series create a 24VDC battery bank.
- Eight batteries connected in series create a 48VDC battery bank.
Additional parallel strings can be used when more amp-hour capacity is required. The complete battery bank should be sized according to daily energy consumption, backup requirements, inverter capacity, solar production, and allowable depth of discharge.
Can the Crown 6CRVGC2H be installed indoors?
Yes, but the installation location should follow the manufacturer's safety requirements and provide suitable protection from excessive heat, moisture, sparks, and other potential hazards. Proper installation and ventilation should always be considered for the complete battery system.
What does AGM mean on the Crown 6CRVGC2H?
AGM stands for Absorbent Glass Mat. The electrolyte is absorbed into glass mat separators inside the battery, allowing the battery to operate as a sealed maintenance-free design without the routine watering required by conventional flooded lead acid batteries.
Charging & Maintenance
How should the Crown 6CRVGC2H be charged in a solar system?
The 6CRVGC2H should be charged using a solar charge controller configured for AGM batteries. The charging equipment should follow the charging requirements specified for the battery and system. Correct charging helps prevent problems caused by chronic undercharging or excessive charging voltage.
Does the Crown 6CRVGC2H need watering?
No. The 6CRVGC2H uses AGM technology and does not require routine electrolyte watering. This makes it useful for solar installations where accessing the batteries regularly may be difficult.
Can the Crown 6CRVGC2H be used with a flooded lead acid battery in the same bank?
It is not recommended to mix AGM and flooded batteries in the same battery bank. Different battery technologies have different charging requirements and operating characteristics. A battery bank should use matching batteries of the same type, capacity, age, and model whenever possible.
How can I prevent premature wear on the Crown 6CRVGC2H?
Use an AGM-compatible charge controller, avoid leaving the battery at a low state of charge for extended periods, prevent unnecessary deep discharges, keep electrical connections clean and secure, and protect the battery from excessive heat.
Can the Crown 6CRVGC2H be used during long periods without solar production?
Yes, but the battery bank must be sized to provide the required backup energy and should be recharged before remaining at a low state of charge for an extended period. In off-grid systems, battery capacity should account for periods of poor weather and reduced solar production.
Crown Battery Comparison
How does the Crown 6CRVGC2H compare with the 6CRV220?
The Crown 6CRVGC2H and 6CRV220 are both 6VDC maintenance-free AGM batteries, but the 6CRVGC2H provides 245Ah compared with 220Ah for the 6CRV220. The 6CRVGC2H also provides greater rated energy storage and reserve capacity, while its GC2H case is slightly wider and taller. The 6CRVGC2H is a better fit when additional capacity is needed without moving to one of Crown's larger 6V battery formats.
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Specification
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6CRV220
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6CRVGC2H
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Voltage
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6VDC
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6VDC
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Capacity (20 Hr)
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220Ah
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245Ah
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Dimensions
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10.25 x 7.06 x 10.94 in (26.0 x 17.9 x 27.8 cm)
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10.25 x 7.13 x 11.38 in (26.0 x 18.1 x 28.9 cm)
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Weight
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63 lbs (28.6 kg)
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72 lbs (32.7 kg)
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Terminal Type
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Dual post/Stud combination
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Dual post/Stud combination
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What is the difference between the Crown 6CRVGC2H and 6CRV330?
The Crown 6CRVGC2H and 6CRV330 are both 6VDC AGM deep cycle batteries, but the 6CRV330 has substantially greater capacity at 330Ah compared with 245Ah for the 6CRVGC2H. The 6CRV330 also provides higher rated energy storage and reserve capacity but is considerably larger and heavier. The 6CRVGC2H is more suitable when a smaller GC2H footprint is preferred, while the 6CRV330 is better suited to systems that need substantially more stored energy.
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Specification
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6CRVGC2H
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6CRV330
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Voltage
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6VDC
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6VDC
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Capacity (20 Hr)
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245Ah
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330Ah
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Dimensions
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10.25 x 7.13 x 11.38 in (26.0 x 18.1 x 28.9 cm)
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11.62 x 7.01 x 14.59 in (29.5 x 17.8 x 37.1 cm)
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Weight
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72 lbs (32.7 kg)
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103 lbs (46.7 kg)
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Terminal Type
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Dual post/Stud combination
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Dual post/Stud combination
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Solar Application & Battery Life
What type of solar system is the Crown 6CRVGC2H best suited for?
The 6CRVGC2H is well suited to off-grid and backup solar systems where maintenance-free AGM technology is preferred. Its 245Ah capacity provides useful storage for small to medium battery banks, while its 6VDC configuration allows multiple batteries to be connected in series for higher-voltage systems.
Can the Crown 6CRVGC2H be used for backup power?
Yes. The battery can be used for backup power applications as well as solar energy storage. Its deep cycle design allows it to provide stored energy repeatedly when properly charged and operated within its intended application.
How deeply should the Crown 6CRVGC2H be discharged?
Avoiding unnecessary deep discharges can help extend battery service life. The battery bank should be sized so that normal daily loads do not require excessive discharge. Actual depth-of-discharge limits should follow Crown's recommendations and the requirements of the complete system.
Does temperature affect the Crown 6CRVGC2H?
Yes. Battery performance and charging requirements change with temperature. Excessive heat can accelerate battery aging, while low temperatures can reduce available capacity. Proper installation and temperature-compensated charging can help maintain appropriate operation.
What should I check if my Crown 6CRVGC2H is not holding a charge?
Check the solar charge controller settings, battery-bank wiring, connections, system loads, and charging source first. The battery should be fully charged before testing its condition. If the battery continues to lose charge unusually quickly after the charging system and wiring have been verified, professional battery testing can help identify the cause.
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