Ingco FBLI2002 20V 4.0Ah P20S Battery

The Ingco 20V 4.0Ah lithium-ion battery pack is a high-capacity power solution designed for use with Ingco 20V (P20S) cordless tools.

With increased capacity compared to standard batteries, this pack is ideal for longer jobs, reducing downtime and the need for frequent recharging. Features LED battery power indicator, intelligent protection systems including over-current, over-temperature, and over-voltage protection for enhanced safety and durability.

Key benefits

• Compatible with all Ingco 20V (P20S) cordless tools - one battery fits 150+ tools
• 4.0Ah (80Wh) high-capacity for extended runtime - double the capacity of 2.0Ah batteries
• LED battery power indicator (3-LED system) displays real-time charge status
• Intelligent protection: over-current, over-temperature, over-voltage, over-discharge, and overcharge protection
• No memory effect - charge anytime without capacity loss
• Fast charging: fully charges in 2 hours with Ingco 2A charger (FCLI20013)
• High-quality lithium-ion cells provide longer runtime and increased power
• Extended operational lifespan compared to standard batteries
• Steady, consistent power output throughout discharge cycle
• High energy density for maximum power in compact design
• Lightweight design eliminates memory effect
• Ideal upgrade from lower-capacity batteries (2.0Ah, 2.5Ah)
• Suitable for trade professionals and demanding DIY use
• Reliable lithium-ion performance for professional applications

Best for

• Powering Ingco 20V cordless tools for extended periods
• Heavy-duty cutting, sanding, and drilling tasks
• Prolonged grinding and polishing applications
• Professional trade users working on site all day
• Demanding DIY projects requiring sustained power
• Tasks requiring minimal battery changeovers
• Remote job sites where charging access is limited
• Continuous operation applications
• High-demand tools like circular saws, angle grinders, and reciprocating saws
• Reducing battery changeovers and improving productivity

Key features – why it matters

• 20V P20S platform compatibility: designed specifically for Ingco P20S cordless tool system - compatible with 150+ tools including drills, impact drivers, circular saws, jigsaws, reciprocating saws, angle grinders, sanders, blowers, grass trimmers, polishers, multi-tools, and more - one battery system powers your entire tool collection
• 4.0Ah (80Wh) high capacity: provides double the runtime compared to 2.0Ah batteries - delivers 80 watt-hours of energy for extended work sessions - ideal for heavy-duty applications requiring sustained power without frequent recharging - reduces downtime and battery changeovers significantly
• 3-LED battery power indicator: real-time visual display shows remaining charge level (typically 3 levels: high, medium, low) - allows easy monitoring of battery status at a glance without guesswork - enables proactive battery management and timely charging before complete depletion
• Intelligent Battery Management System (BMS): comprehensive protection circuitry safeguards battery from over-current (excessive load protection), over-temperature (thermal shutdown during overheating), over-voltage (charging spike protection), over-discharge (deep discharge prevention), and overcharge (prolonged charging protection) - extends battery lifespan, ensures safe operation, and enhances durability
• No memory effect: advanced lithium-ion technology allows charging at any state of discharge without reducing capacity or performance - no need to fully discharge before recharging - provides ultimate charging flexibility and convenience for professional workflows
• Fast 2-hour charging: fully recharges in approximately 2 hours (120 minutes) using compatible Ingco 20V 2A fast charger (FCLI20013, sold separately) - despite double the capacity of 2.0Ah batteries, still charges efficiently to minimize downtime
• High-quality lithium-ion cells: premium cell construction delivers longer runtime and increased power compared to standard battery packs - maintains consistent 20V voltage output from full charge to final watt - ensures optimal tool performance throughout discharge cycle
• High energy density: advanced lithium-ion technology packs maximum energy into compact, manageable size - provides professional-grade power without excessive bulk or weight
• Extended operational lifespan: superior cell quality and intelligent protection systems result in longer battery life (more charge cycles) compared to ordinary batteries - better long-term value and reliability
• Steady power output: maintains consistent voltage delivery ensuring optimal motor efficiency, maximum tool torque, and smooth operation across all applications - no power fade until battery is nearly depleted
• Lightweight construction: despite higher capacity, engineered to minimize weight (680g) - lithium-ion technology eliminates memory effect and enables lighter design compared to older battery technologies
• Durable construction: designed to withstand demanding work environments including both indoor workshop and outdoor job site conditions

Specifications

What's included

• 1 × Ingco 20V 4.0Ah lithium-ion battery pack (FBLI2002)
• User manual and safety instructions
• Note: Charger sold separately

How to use

• Check battery charge: Press the LED battery power indicator button to check remaining charge level before starting work. The 3-LED system typically shows high (3 LEDs), medium (2 LEDs), or low (1 LED) charge status. Charge if needed to avoid mid-task interruption.
• Insert into tool: Align the 4.0Ah battery pack with the battery port on your compatible Ingco 20V P20S cordless tool. Slide the battery onto the tool until you hear/feel a click, indicating secure lock.
• Ensure secure connection: Verify the battery is firmly locked in place and properly seated - a loose connection can cause tool malfunction, reduced performance, or safety issues.
• Operate tool normally: Use your Ingco 20V cordless tool as directed in the tool's user manual. The 4.0Ah high capacity provides extended runtime for heavy-duty applications, reducing the need for frequent battery changes during prolonged work sessions.
• Monitor charge level: Periodically check the 3-LED indicator during use to monitor remaining power. When battery power drops to 1 LED (low), prepare to swap with a charged spare battery or plan for recharging.
• Remove when depleted: When the battery is depleted or tool performance decreases noticeably, press the battery release button/latch and slide the battery off the tool.
• Recharge using compatible charger: Insert the depleted battery onto an Ingco 20V P20S charger (FCLI20013 or similar, sold separately). The 4.0Ah battery will fully charge in approximately 2 hours with a 2A fast charger - double the charging time of 2.0Ah batteries but with double the runtime.
• Remove when not in use: Always remove the battery from the tool when not in use, during maintenance, when changing accessories, or when storing the tool. This prevents accidental starts and conserves battery charge.
• Rotate multiple batteries: For continuous heavy-duty operation, use a battery rotation system - charge spare batteries (4.0Ah or mix with 2.0Ah) while working with others to maintain uninterrupted workflow on demanding job sites.
• Store properly: Store batteries in a cool, dry place away from metal objects that could cause short circuits. Maintain partial charge (40-60%) for long-term storage.

Care & maintenance

• Store in a cool, dry place away from direct sunlight and extreme temperatures (ideally 10-25°C).
• Avoid exposure to moisture, water, rain, and wet conditions - the battery is not waterproof.
• Keep battery contacts clean and free from dust, debris, oil, and corrosion for proper electrical connection.
• Recharge periodically during long-term storage (charge every 2-3 months minimum) to prevent deep discharge damage.
• For long-term storage, maintain charge level at 40-60% rather than fully charged or fully depleted.
• Do not store fully depleted batteries for extended periods - this can cause irreversible cell damage.
• Avoid dropping or subjecting battery to severe impact, even though housing is impact-resistant.
• Do not expose battery to extreme heat, fire, or temperatures above 50°C - risk of thermal runaway and fire.
• Do not attempt to disassemble, modify, or repair the battery - contains no user-serviceable parts and tampering voids warranty.
• Check battery periodically for physical damage, swelling, leaking, deformation, or unusual odor - discontinue use immediately if damaged.
• Do not short-circuit battery terminals - keep away from metal objects like keys, coins, nails, screws, tools.
• Charge only with compatible Ingco 20V P20S chargers (FCLI20013 or similar) - using incorrect chargers can damage battery or create serious safety hazards.
• Allow hot batteries to cool to room temperature before charging for optimal charging efficiency and battery longevity.
• Clean battery exterior with dry cloth only - never use water, solvents, or harsh chemicals.
• Monitor 3-LED indicator during use - erratic behavior or failure to light may indicate battery issues requiring replacement.
• Dispose of worn-out batteries properly at designated battery recycling facilities - lithium-ion batteries must not be discarded in regular household waste.
• Respect battery's higher weight (680g vs 400g for 2.0Ah) during handling and tool use.

Accessories & add-ons

• Ingco 20V 2A fast battery charger (FCLI20013) - charges in 2 hours
• Additional Ingco 20V 4.0Ah batteries (FBLI2002) for extended runtime systems
• Ingco 20V 2.0Ah lithium-ion batteries (FBLI2001) for lightweight applications
• Battery and charger kits (various combinations for convenience)
• Battery storage cases and organizers for multiple batteries
• Ingco 20V P20S cordless power tools (drills, impact drivers, saws, grinders, sanders, blowers)
• Tool storage systems, toolboxes, and carrying cases

Delivery & returns

Free UK delivery on orders over £50. 28-day returns apply.

Why buy from London Decorators Merchants

• Independent, family-owned business
• 16 decorating stores nationwide
• Trade-friendly service and support
• UK stock with fast dispatch
• Trade account available
• Expert advice on Ingco battery systems

Shop now or visit our branch for trade advice.

FAQs

Which tools is this battery compatible with?

This battery is compatible with all Ingco 20V tools that use the P20S battery system - over 150 different tools including cordless drills, impact drivers, circular saws, jigsaws, reciprocating saws, angle grinders, orbital sanders, blowers, grass trimmers, polishers, multi-tools, impact wrenches, and many more. One battery fits the entire P20S platform, providing a universal power solution across your entire Ingco cordless tool collection.

What does 4.0Ah mean?

4.0Ah (ampere-hours) refers to the battery capacity - it means the battery can theoretically deliver 4.0 amps of current for 1 hour, or 2.0 amps for 2 hours, etc. This 4.0Ah capacity (80Wh energy) provides double the runtime compared to 2.0Ah batteries, making it ideal for heavy-duty, extended applications. It delivers longer runtime between charges, significantly reducing the need for battery changeovers during prolonged work sessions.

Is this suitable for trade use?

Yes, the higher 4.0Ah capacity makes it especially suitable for professional trade and demanding commercial applications. The extended runtime (double that of 2.0Ah), intelligent protection systems (over-current, over-temperature, over-voltage), fast 2-hour charging, and durable construction make it reliable for intensive trade environments. Professional tradespeople prefer 4.0Ah batteries for heavy-duty tasks requiring sustained power throughout the workday with minimal battery changes.

Does it include a charger?

No. This listing is for the battery pack only. The compatible Ingco 20V 2A fast charger (FCLI20013) is sold separately and must be purchased if you don't already have a compatible P20S charger. Battery and charger kits combining both items are also available for convenience and value.

Can I use this instead of a 2.0Ah battery?

Yes, the 4.0Ah battery can replace and upgrade any lower-capacity Ingco 20V batteries (2.0Ah, 2.5Ah) where longer runtime is required. It's fully compatible with all P20S tools. The main difference is extended runtime (approximately double) and slightly increased weight (680g vs 400g for 2.0Ah). For heavy-duty tasks like cutting, grinding, or prolonged drilling, the 4.0Ah is the superior choice despite the modest weight increase.

How long does it take to charge?

The 4.0Ah battery charges in approximately 2 hours (120 minutes) when using a compatible Ingco 20V 2A fast intelligent charger (FCLI20013, sold separately). This is double the charging time of 2.0Ah batteries (1 hour) but provides double the runtime, maintaining the same charge time to runtime ratio. Charging time may vary slightly based on battery condition, temperature, and charger model.

Is it compatible with all Ingco chargers?

It is compatible with chargers designed specifically for the Ingco 20V P20S battery platform, including the FCLI20013 (2A fast charger) and other P20S-compatible chargers. Do not use chargers from different voltage platforms (12V, 40V) or other brands, as incorrect chargers can damage the battery or create serious safety hazards. Always verify charger compatibility and voltage rating before use.

Do you sell other battery sizes?

Yes. Ingco 20V batteries are available in multiple capacities: 2.0Ah (FBLI2001) for lightweight applications and portability, 4.0Ah (FBLI2002) for extended runtime and heavy-duty work, and potentially other capacities. Choose 2.0Ah for overhead work and tasks prioritizing lightness, or 4.0Ah for demanding applications requiring maximum runtime.

What is the 3-LED battery power indicator?

The 3-LED battery power indicator is a visual display system that shows the remaining charge level when you press the indicator button. Typically, 3 LEDs lit indicate high charge (67-100%), 2 LEDs indicate medium charge (33-66%), and 1 LED indicates low charge (0-33%). This allows you to quickly assess battery status at a glance, enabling proactive battery management and timely recharging before complete depletion.

What are the intelligent protection features?

The intelligent Battery Management System (BMS) includes comprehensive protection: over-current protection (prevents damage from excessive tool load), over-temperature protection (thermal shutdown if battery overheats during use or charging), over-voltage protection (guards against charging voltage spikes), over-discharge protection (prevents deep discharge damage), and overcharge protection (prevents damage from prolonged charging). These systems work together to extend battery lifespan, ensure safe operation, and enhance durability in demanding conditions.

Can I charge the battery before it's fully depleted?

Yes, absolutely. Thanks to the no memory effect of lithium-ion technology, you can charge the battery at any state of discharge without reducing its capacity, performance, or lifespan. Unlike older battery technologies (Ni-Cd, Ni-MH), you don't need to fully discharge before recharging. This provides ultimate charging flexibility for professional workflows - charge during lunch breaks, between jobs, or whenever convenient without worrying about capacity loss.

How much longer will this battery last compared to 2.0Ah?

The 4.0Ah battery provides approximately double (2×) the runtime compared to 2.0Ah batteries in the same tool under identical conditions. For example, if a 2.0Ah battery provides 20 minutes of continuous cutting, the 4.0Ah will provide approximately 40 minutes. Actual runtime depends on the specific tool, application, load, and operating conditions, but the 4.0Ah consistently delivers roughly twice the work capacity per charge.

Is the battery heavier than 2.0Ah?

Yes, the 4.0Ah battery weighs 680g compared to approximately 400g for 2.0Ah batteries - an increase of about 280g (roughly 70% heavier). This modest weight increase is the trade-off for double the runtime. For most applications, the extended runtime justifies the extra weight. Choose 2.0Ah for overhead work prioritizing lightness, or 4.0Ah for ground-level or benchtop work prioritizing maximum runtime.

What happens during over-temperature protection?

If the battery detects excessive temperature during use or charging (typically above safe operating limits), the over-temperature protection system will automatically shut down the battery to prevent damage and safety hazards. Allow the battery to cool to room temperature in a well-ventilated area before resuming use or charging. Persistent overheating may indicate excessive tool load, environmental conditions, or battery issues requiring inspection.

How should I maintain multiple batteries for professional use?

For professional applications, maintain a rotation system: use one 4.0Ah battery while charging another, ensuring continuous operation. Store backup batteries at 40-60% charge in cool, dry conditions. Label batteries with purchase dates to track age. Recharge stored batteries every 2-3 months. Consider pairing 4.0Ah batteries for heavy-duty tasks with 2.0Ah batteries for lighter work to optimize weight and runtime. Inspect all batteries regularly for damage or performance degradation.

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