VRLA Batteries by Adroit Engineering
Advanced Valve Regulated Lead Acid technology for reliable, maintenance-free power solutions.
Introduction
Maintenance-Free Design
At Adroit Engineering, we proudly introduce LangStark VRLA Batteries, a premium range of maintenance-free, high-performance batteries. Engineered with advanced Valve Regulated Lead Acid (VRLA) technology, LangStark batteries offer a sealed, spill-proof, and highly reliable energy solution suitable for various applications.
Built for Extreme Conditions
Built to endure extreme temperatures and demanding environments, LangStark batteries provide exceptional cycle life, deep discharge recovery, and superior energy efficiency. Whether for backup power, renewable energy storage, or industrial applications, our batteries ensure a dependable power source with zero maintenance requirements.
Why Choose LangStark VRLA Batteries?
Performance Benefits
- Maintenance-Free & Spill-Proof – No need for electrolyte refilling.
- Long-Lasting & Durable – Deep-cycle design with high-performance plates and separators.
- Superior Deep Cycle Capability – Withstands repeated charge-discharge cycles.
- Extreme Temperature Resilience – Reliable in both hot and cold conditions.
Technical Advantages
- Global Standards Compliance – Certified by IEC 60896, UL 1989, JIS C8702, and ISO 9001/14001.
- High Energy Density – Compact yet powerful.
- Fast Recharge & Low Self-Discharge – Ideal for standby and cyclic applications.
- Deep Discharge Recovery – Restores performance after prolonged discharges.
Additional Features
- Vibration & Shock Resistant – Designed for tough environments.
- Eco-Friendly & Recyclable – A sustainable energy solution.
- Fully Automated Production – Ensures consistency, quality, and rapid supply.
Applications of LangStark VRLA Batteries
Power & Backup
– Reliable power for data centers, hospitals, and emergency systems. Emergency Lighting & Security Systems – Critical power backup. Control Panels – Suitable for low-voltage switchgear and PLC control panels.
Energy & Infrastructure
– Efficient solar and wind energy storage. Telecommunications – Stable backup power for network towers and infrastructure. Industrial Automation & Robotics – Reliable industrial power.
Specialized Uses
Medical Equipment – Emergency backup for hospitals and clinics. Vending Machines – Reliable power for airport and public vending machines.
Mobility & Transport
Industrial & Automotive – Supports forklifts, EVs, and heavy machinery. Electric Vehicles & Mobility – Powers e-bikes, golf carts, and wheelchairs. Marine & Recreational Vehicles – Used in boats, yachts, and RVs.
Battery Construction & Technology
Core Technology
AGM Technology – 99% gas recombination eliminates maintenance. Electrolyte – Sulfuric acid (H₂SO₄) absorbed in AGM or gel for leak-proof operation.
Plate Structure
Positive Plate – High-density lead dioxide (PbO₂) for maximum energy storage. Negative Plate – Highly porous lead (Pb) for efficient charging. Separator – Advanced AGM (Absorbent Glass Mat) technology.
External Components
Container & Cover – Impact-resistant ABS material (flame retardant available). Valves – Pressure-regulating safety valves to prevent gas buildup. Terminals – Corrosion-resistant lead alloy/copper ensuring strong conductivity. Orientation – Can be mounted in any direction.
Technical Specifications & Compliance
Compliance & Standards
LangStark VRLA batteries meet global safety and quality standards, including:
- IEC 60896-21/22 – International standards for stationary lead-acid batteries.
- UL 1989 – Safety standards for valve-regulated lead-acid batteries.
- RoHS & CE Certified – Environmental and safety compliance.
Model | Voltage (V) | Capacity (Ah) | Dimensions (mm) (L x W x H) | Weight (Kg) | Terminal Type | Max Discharge Current |
1200L | 12 | 0.8Ah | 96 x 25 x 62 | 0.34 | T9 | 12A (5 sec) |
1201L | 12 | 1.2Ah | 97 x 43 x 52 | 0.53 | F1 | 18A (5 sec) |
1202L | 12 | 2.5Ah | 104 x 48 x 70 | 0.93 | T16/T25 | 37.5A (5 sec) |
1205L | 12 | 5Ah | 90 x 70 x 167 | 1.8 | F1/F2 | 75A (5 sec) |
1207L | 12 | 7Ah | 151 x 65 x 94 | 2.1 +/-3% | F3/F4 | 100A (5 sec) |
1209L | 12 | 9Ah | 151 x 65 x 94 | 2.8 +/-3% | F1/F2 | 135A (5 sec) |
1212L | 12 | 12Ah | 151 x 98 x 94 | 3.5 +/-3% | F1/F2 | 180A (5 sec) |
1215L | 12 | 15Ah | 181 x 77 x 167 | 5.08 +/-3% | F3/F4 | 225A (5 sec) |
1224L | 12 | 24Ah | 166 x 175 x 125 | 8.1 +/-3% | F3/F4 | 300A (5 sec) |
1228L | 12 | 28Ah | 166 x 175 x 125 | 9.3+/-3% | F2/F6 | 310A (5 sec) |
1240L | 12 | 40Ah | 197.5 x 165.5 x 170 | 12.8 +/-3% | F11 | 400A (5 sec) |
1265L | 12 | 65Ah | 350 x 167 x 179 | 20.5 +/-3% | F11 | 650A (5 sec) |
Operating Specifications
Design Life: 5 years
Self Discharge: 3% per month at 20°C
Operating Temperature:
- L Series: -20°C to +60°C
- H Series: -20°C to +85°C (for extreme conditions, available on request)
Charging: Constant Voltage Charge @ 25°C
Customization & OEM Solutions
Premium Performance
Power your world with LangStark—where performance meets endurance.
Application Optimization
Performance Optimization for Specific Applications
Branding Options
Custom Branding & Private Labeling
Technical Customization
Special Casing & Terminal Options
Contact Us
Contact us for bulk orders, OEM partnerships, and customized solutions. Our team of experts is ready to help you find the perfect power solution for your specific needs.
Our engineering team can provide detailed technical information and help you select the right battery model for your application requirements.
We offer attractive partnership opportunities for distributors and resellers. Contact us to learn more about our distributor program.
Call Us
Call Us Call: +91-20-29525521
Email Us
Email: info@adroit-eng.com