What is the Rolls 4V 1148Ah Flooded Lead- Acid Battery used for?

This deep cycle battery is ideal for renewable energy systems, solar arrays, off-grid homes, and industrial backup power applications requiring reliable, long-lasting energy storage.

How long does the Rolls 4V 1148Ah Flooded Lead-Acid Battery last?

With proper maintenance, the battery can deliver up to 3,500 deep discharge cycles at 50% Depth of Discharge (DOD), ensuring years of reliable performance.

Can the Rolls 4V 1148Ah battery be serviced?

Yes, this battery features a flooded design allowing electrolyte maintenance, which helps extend its service life and maintain optimal efficiency.

What is the charging requirement for the Rolls 4V 1148Ah Flooded Lead-Acid Battery?

The battery should be charged using a compatible deep cycle lead-acid charger. Proper ventilation is recommended to safely release gases during charging.

What makes this battery suitable for deep cycle applications?

Thick lead plates, advanced lead oxide materials, and a durable construction allow it to withstand repeated deep discharges while maintaining voltage stability and high reserve capacity.

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Rolls 4V 1148Ah Flooded Lead-Acid Battery – 4-KS-21PS

Rolls 4V 1148Ah Flooded Lead-Acid Battery

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Rolls 4V 1148Ah Flooded Lead-Acid Battery – 4-KS-21PS

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SKU PES-ESS-BTS-0348

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$1,538.83 USD

$ $1,538.83 USD

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SKU: PES-ESS-BTS-0348
MPN: 4-KS-21PS

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Rolls 4V 1148Ah Flooded Lead-Acid Battery – 4-KS-21PS $1,538.83

Specifications

Datasheet

Capacity 1148Ah

Product Category Battery

Certifications

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Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

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Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

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You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

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Rolls 4V 1148Ah Flooded Lead-Acid Battery – Deep Cycle Power for Renewable Energy Systems

The Rolls 4V 1148Ah Flooded Lead-Acid Battery (4-KS-21PS) is engineered for long-lasting energy storage performance in solar, off-grid, and industrial applications. Known for its exceptional reliability, robust construction, and serviceable design, the Rolls 4V 1148Ah Flooded Lead-Acid Battery provides a dependable power solution with a lifespan that exceeds industry standards for deep cycle batteries.

Product Features

High Capacity and Efficiency

With an impressive 1148Ah capacity at 100-hour rate, this battery delivers consistent, deep discharge performance ideal for renewable energy storage systems requiring high power output.

Durable Construction

The Rolls 4V 1148Ah Flooded Lead-Acid Battery features heavy-duty lead plates and a thick polyethylene envelope separator, ensuring structural integrity and minimizing short-circuit risk.

Serviceable Flooded Design

This model allows electrolyte maintenance for optimal performance, extending its service life while maintaining high energy efficiency in demanding environments.

Excellent Cycle Life

Built to withstand thousands of deep discharge cycles, the Rolls KS series is known for durability and extended operational longevity.

Renewable Energy Ready

Perfect for solar arrays, off-grid homes, and energy backup systems, the Rolls 4V 1148Ah Flooded Lead-Acid Battery ensures consistent energy storage and delivery under varied load conditions.

How the Rolls 4V 1148Ah Flooded Lead-Acid Battery Works

Deep Cycle Mechanism

By utilizing thick positive plates and advanced lead oxide materials, the battery efficiently stores and releases charge over extended cycles, maintaining voltage stability and high reserve capacity.

Thermal and Charge Management

The vented caps allow for safe gas release during charging, while maintaining electrolyte balance to enhance performance consistency over time.

Specifications

Model Number	4-KS-21PS
Manufacturer	Rolls
Battery Type	Flooded Lead-Acid Deep Cycle
Nominal Voltage	4V DC
Capacity	1148Ah @ 100HR
Cycle Life	3500 cycles @ 50% DOD
Electrolyte Type	Liquid (Flooded)
Terminal Type	Lead Post
Container Material	Durable Polypropylene
Dimensions (L × W × H)	15.5 × 7.0 × 17.8 in
Weight	120 lb

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Rolls 4V 1148Ah Flooded Lead-Acid Battery – Deep Cycle Power for Renewable Energy Systems

Product Features

High Capacity and Efficiency

With an impressive 1148Ah capacity at 100-hour rate, this battery delivers consistent, deep discharge performance ideal for renewable energy storage systems requiring high power output.

Durable Construction

The Rolls 4V 1148Ah Flooded Lead-Acid Battery features heavy-duty lead plates and a thick polyethylene envelope separator, ensuring structural integrity and minimizing short-circuit risk.

Serviceable Flooded Design

This model allows electrolyte maintenance for optimal performance, extending its service life while maintaining high energy efficiency in demanding environments.

Excellent Cycle Life

Built to withstand thousands of deep discharge cycles, the Rolls KS series is known for durability and extended operational longevity.

Renewable Energy Ready

Perfect for solar arrays, off-grid homes, and energy backup systems, the Rolls 4V 1148Ah Flooded Lead-Acid Battery ensures consistent energy storage and delivery under varied load conditions.

How the Rolls 4V 1148Ah Flooded Lead-Acid Battery Works

Deep Cycle Mechanism

By utilizing thick positive plates and advanced lead oxide materials, the battery efficiently stores and releases charge over extended cycles, maintaining voltage stability and high reserve capacity.

Thermal and Charge Management

The vented caps allow for safe gas release during charging, while maintaining electrolyte balance to enhance performance consistency over time.

Specifications

Model Number	4-KS-21PS
Manufacturer	Rolls
Battery Type	Flooded Lead-Acid Deep Cycle
Nominal Voltage	4V DC
Capacity	1148Ah @ 100HR
Cycle Life	3500 cycles @ 50% DOD
Electrolyte Type	Liquid (Flooded)
Terminal Type	Lead Post
Container Material	Durable Polypropylene
Dimensions (L × W × H)	15.5 × 7.0 × 17.8 in
Weight	120 lb

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