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250ah 12v solar backup rechargeable battery

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Rated 5 out of 5

Original price was: KSh30,000.00.Current price is: KSh27,000.00.

Key Features

  • Massive 250Ah Capacity: Delivers a colossal 3.0kWh of total energy storage, making it the highest-capacity 12V monoblock available for large “Nyumbani” (home) estates, clinics, and commercial off-grid micro-grids.

  • Deep Cycle Nano-Gel Technology: Features an immobilized silica gel electrolyte that prevents acid stratification and plate corrosion, ensuring stable power delivery even under heavy, daily cyclic use.

  • 100% Maintenance-Free (VRLA): Completely sealed, Valve Regulated Lead Acid design that eliminates the need for water topping, acid checks, or venting—ideal for a “fit-and-forget” indoor installation.

  • Superior Cycle Life (1,500+ Cycles): Optimized for longevity, offering a reliable service life of 5 to 10 years when maintained at a 50% Depth of Discharge (DOD), far outlasting standard 100Ah or 200Ah units.

  • High-Surge Peak Performance: Engineered with ultra-low internal resistance (approx. 2.4mΩ) to handle massive surge currents (up to 2,500A), perfect for starting motor-driven appliances like deep freezers and borehole pumps.

  • Tropicalized & Heat Resistant: Built to excel in extreme climates (operating from -20°C to 60°C), effectively resisting the “thermal runaway” and battery swelling common in standard batteries in hot regions.

  • Exceptional Deep Discharge Recovery: Features proprietary thick-grid plates that allow the battery to bounce back to full capacity even after accidental deep discharges (up to 80% DOD) without permanent damage.

  • Minimal Self-Discharge Rate: High-purity lead-calcium grids keep energy loss below 3% per month, ensuring your backup power remains ready for action during long rainy seasons or idle periods.

  • Safe & Non-Gassing Design: Leak-proof and spill-proof construction emits zero harmful fumes, making it perfectly safe for use inside living rooms, closed closets, or under-stair storage.

  • Heavy-Duty ABS Casing: Encased in a flame-retardant, shock-resistant container (weighing approx. 65kg–72kg) designed to protect the high-density lead components from mechanical vibration and impact.

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Description

250Ah 12V Deep Cycle Solar Backup Battery: The Ultimate Energy Reservoir

Take your energy independence to the next level with the 250Ah 12V Deep Cycle Solar Backup Battery. As one of the largest 12V monoblock batteries available, the 250Ah model is the premier choice for high-demand users who require maximum runtime and reliability. Whether you are powering a large “Nyumbani” (home), a rural health clinic, or a commercial telecommunications site, this battery provides the massive storage capacity needed to bridge the gap through long nights and cloudy days.

Built with Advanced Deep Cycle Technology, this 250Ah unit is engineered for heavy-duty discharge and recharge cycles. It offers significantly more “usable” energy than standard 100Ah or 200Ah batteries, making it the perfect foundation for a robust off-grid or hybrid solar system.

Why the 250Ah Solar Backup Battery is a Game-Changer

  • Colossal 3.0kWh Energy Capacity: With a 250 Amp-Hour rating, this battery stores a staggering 3,000 Watt-hours (3 units) of electricity. It is designed to handle the simultaneous loads of modern living, from refrigerators and TVs to water pumps and security systems.

  • Superior Cycle Life: Specifically optimized for cyclic use, premium 250Ah gel/tubular variants offer 1,200 to 1,500 cycles at 50% Depth of Discharge (DOD). This longevity ensures that your investment provides a reliable return for 5 to 10 years under proper management.

  • Maintenance-Free (VRLA/Gel) Design: Most 250Ah solar batteries utilize a sealed, valve-regulated design. This means zero water topping, zero acid fumes, and zero leaks, allowing for safe installation in almost any indoor environment.

  • Ultra-Low Self-Discharge: High-purity lead-calcium grids ensure the battery loses less than 2-3% of its charge per month, keeping your backup power ready for action even after long periods of inactivity.


Technical Specifications & Performance

Feature Specification
Nominal Voltage 12V
Capacity (C10/C20) 250 Amp-Hours (Ah)
Total Energy Storage Approx. 3.0kWh
Technology Deep Cycle Gel / Sealed Maintenance Free
Max Discharge Current Up to 2500A (5 Seconds)
Operating Temp Range -20°C to 60°C (Tropicalized)
Dimensions (Approx) 522mm (L) x 269mm (W) x 225mm (H)
Weight Approx. 65kg – 72kg (Heavy-duty lead content)

Product Highlights

1. Tropicalized for Maximum Performance

High temperatures are the primary enemy of battery life. Our 250Ah backup battery is fully tropicalized, featuring an improved electrolyte formula and a thermal-stable casing. This ensures the battery thrives in the heat of Mombasa or the northern plains without the “swelling” common in standard units.

2. Exceptional Deep Discharge Recovery

Standard batteries often fail if drained too far. The 250Ah deep-cycle design features thicker, heavier plates that allow for superior recovery characteristics. Even if your system accidentally hits a low-voltage cutoff, this battery is built to bounce back to full capacity when recharged.

3. High-Surge Performance

Don’t let motor-driven appliances trip your system. The 250Ah capacity provides massive peak current, easily handling the “startup kick” required by deep freezers, borehole pumps, and modified sine wave inverters without significant voltage sag.

Massive Backup: What Can It Power?

A single 250Ah battery is a powerhouse. On a full charge, it can typically support:

  • Full Home Lighting: 20+ LED bulbs (5W) for over 30 hours.

  • Modern Kitchen: A medium-sized fridge/freezer (150W) for 18–22 hours.

  • Entertainment: A 55″ Smart TV, Soundbar, and Decoder for 15–20 hours.

  • Security & Automation: Full CCTV, DVR, Electric Fence, and Gates for 48–72 hours.

  • Work from Home: 3 Laptops, high-speed Wi-Fi, and a printer for 24+ hours.

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