Deep-cycle applications demanding sustained energy delivery over extended discharge cycles place considerable strain on conventional sealed lead-acid batteries, which suffer from reduced usable capacity, sensitivity to partial state of charge, and significant weight penalties. The Rolls R12-300LFP addresses these limitations directly as a 12V 200Ah Lithium Iron Phosphate (LiFePO4) battery engineered as a compatible drop-in SLA replacement for commercial, marine, leisure, and off-grid energy storage applications.
Developed under the Rolls Battery Engineering R Series platform, this unit employs LiFePO4 cell chemistry, which offers superior thermal stability, a flat discharge voltage curve, and a significantly extended cycle life compared to AGM or gel equivalents. The chemistry supports fast charge and discharge rates and maintains usable capacity across a broader state-of-charge window, delivering 3840Wh of energy storage in practical use.
The battery measures 521mm × 267mm – 223mm and weighs 33kg, representing up to 50% weight reduction over comparable SLA formats. Up to 48V system configurations are achievable through series connectivity. Terminal polarity should be verified against the product label prior to installation. No direct cross-reference codes are confirmed for this SKU.
The R Series LiFePO4 range is available in additional capacities: R12-135LFP, R12-150LFP, R12-200LFP, and R12-450LFP, allowing system designers to select the appropriate energy storage capacity for their application." This battery is covered by a 3-year manufacturer warranty. Note: start-stop vehicle compatibility is not confirmed – refer to the product label. "Delivery: hazardous goods shipping applies, typically 3–5 working days within UK mainland. 30-day returns.
Rolls Series 4000 Deep Cycle Batteries - The Rolls series 4000 batteries are available in 2V, 6V or 12V configuration and offer a wide range of capacities. Used in a variety of applications including renewable energy systems, they have a long life expectancy and one of the longest warranty periods available.
Combination of thick plate design with the highest density active material. Envelope separators. Increased electrolyte reserve. Greater rigidity. Greater durability. Sediment chamber removed allowing higher plates to be used in the same sized cell, thus yielding greater capacity. Unsurpassed cycling service. Less maintenance.
Key Feature:
- Backed by a 3 Years Warranty-year warranty for dependable service life and reliable performance under everyday driving conditions.
- Product Group: 4606, ROLLS SERIES 4000, engineered to deliver consistent starting power and steady performance in demanding automotive applications.
- Engineered as a No 6.0 battery, ensuring consistent current flow, strong cranking power, and stable voltage delivery.
- Manufactured by Rolls, a trusted brand delivering reliable automotive power and longevity .
- Weighs 33.0 kg, balancing high capacity with manageable handling for easy fitting and routine maintenance.
- OEM-style design ensures perfect terminal alignment, secure fitment, and support for both standard and start-stop vehicle systems.
Compatibility:
Built for industrial and construction machinery, supplying consistent power output and resilience to meet demanding start-stop and auxiliary power needs in tough operating conditions.
Uses:
- Restores dependable starting for vehicles that require consistent, everyday performance in regular driving conditions.
- Suited to No battery applications, delivering steady operation for vehicles with start-stop or accessory-heavy systems.
- Supports stable electrical output for ignition, lighting, infotainment, and critical onboard electronics in all environments.
- Performs reliably across short commutes and longer journeys where consistent restarts and electrical stability are essential.
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