Crown CR-190 190Ah 8VDC Commercial Deep Cycle Flooded Lead Acid Battery

Frequently Asked Questions

What is the Crown CR-190 battery?
The Crown CR-190 is an 8VDC commercial deep cycle flooded lead acid battery with a rated capacity of 190Ah at the 20-hour rate. It uses the GC8 battery group size and is designed for repeated charge and discharge cycles in applications such as solar energy storage, electric vehicles, golf carts, RVs, marine equipment, and industrial equipment.

Is the Crown CR-190 suitable for solar energy storage?
Yes. The Crown CR-190 can be used in off-grid solar and other renewable energy systems when the battery bank is properly designed for an 8VDC battery configuration. Its flooded lead acid construction makes it appropriate for installations where regular inspection, watering, ventilation, and charging maintenance can be provided.

How much energy can the Crown CR-190 store?
The Crown CR-190 is rated at 190Ah at the 20-hour rate and 8VDC, providing approximately 1.11 kWh of rated energy at that rate. Actual usable energy will vary depending on discharge rate, battery condition, temperature, system losses, and the depth of discharge selected for the application.

How many Crown CR-190 batteries are needed for a solar battery bank?
The required number depends on the system voltage and the amount of energy storage needed. Because each battery is 8VDC:

• Two batteries in series create a 16VDC battery bank.
• Three batteries in series create a 24VDC battery bank.
• Six batteries in series create a 48VDC battery bank.

Additional parallel strings can increase the total amp-hour capacity while keeping the same system voltage. The final battery count should be based on the inverter voltage, daily energy consumption, required backup time, solar production, and acceptable depth of discharge.

What type of installation is best suited for the Crown CR-190?
The Crown CR-190 is best suited for stationary or mobile applications that can accommodate a flooded lead acid battery and provide proper ventilation and routine maintenance access. It can be used in off-grid solar banks, backup power systems, golf carts, RVs, marine equipment, floor machines, and other electric vehicles when the system is designed for an 8VDC battery.

Charging & Maintenance

How should the Crown CR-190 be charged in a solar system?
The CR-190 should be charged with a solar charge controller configured for a flooded lead acid battery and according to the applicable Crown charging requirements. The charging system should be matched to the complete battery bank rather than to a single battery, with the correct voltage settings for the number of batteries connected in series.

Does the Crown CR-190 require regular watering?
Yes. As a flooded lead acid battery, the CR-190 requires periodic electrolyte inspection and watering. Use distilled or de-mineralized water and maintain the electrolyte at the proper level. Watering requirements can vary with charging settings, cycling frequency, temperature, and battery age.

How can I help extend the service life of a Crown CR-190 in a solar system?
Proper charging, regular maintenance, adequate ventilation, and avoiding unnecessary deep discharges can help support longer battery life. Battery-bank sizing is also important because consistently operating a battery bank near its limits can increase cycling stress.

Can the Crown CR-190 be used without ventilation?
No. The CR-190 is a flooded lead acid battery and should be installed in a properly ventilated area. Charging can produce hydrogen gas, so the battery should be kept away from sparks, flames, cigarettes, and other ignition sources.

Crown Battery Comparison

What is the difference between Crown CR-190 and Crown CR-165?
The Crown CR-190 and CR-165 are both 8VDC GC8 flooded lead acid deep cycle batteries. The CR-190 provides 190Ah at the 20-hour rate compared with 165Ah for the CR-165, giving the CR-190 greater rated energy storage while using the same general battery footprint. The CR-165 may be suitable when a lower capacity battery is sufficient, while the CR-190 is better suited when additional capacity is desired within the same GC8 format.

How does the Crown CR-190 compare with Crown CR-150?
The Crown CR-190 and CR-150 are both 8VDC GC8 flooded lead acid deep cycle batteries. The CR-190 provides 190Ah at the 20-hour rate compared with 150Ah for the CR-150, making it the higher-capacity option. Both use the same GC8 footprint, so the main difference is the amount of rated energy available from each battery.

Solar Application & Battery Life

Is the Crown CR-190 better for a 24VDC or 48VDC solar system?
The CR-190 can be configured for either voltage because it is an 8VDC battery. Three batteries connected in series produce a 24VDC nominal bank, while six batteries connected in series produce a 48VDC nominal bank. The correct configuration depends on the inverter, charge controller, and overall system design.

Can Crown CR-190 batteries be connected in parallel?
Yes. Parallel strings can be used to increase total amp-hour capacity while maintaining the same nominal battery-bank voltage. Batteries connected in parallel should be properly matched, and the system should use appropriate cabling, overcurrent protection, and battery-bank design practices to keep current sharing balanced.

What depth of discharge should I use with the Crown CR-190 in a solar system?
For flooded lead acid batteries, limiting routine depth of discharge can help reduce battery stress and support longer service life. The battery bank should be sized with enough capacity to meet expected loads without requiring unnecessarily deep daily discharges. Actual battery life depends on charging, cycling, temperature, maintenance, and operating conditions.

Is the Crown CR-190 maintenance free?
No. The CR-190 is a flooded lead acid battery and requires routine maintenance. This includes checking electrolyte levels, adding distilled or de-mineralized water when needed, inspecting connections, keeping the battery clean and dry, and ensuring that the charging system is operating correctly.