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  • Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life
  • Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life
  • Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life
  • Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life
  • Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life
Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life

Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life

  • 500 - 999 Sets
    $18
  • 1000 - 4999 Sets
    $16
  • >= 5000 Sets
    $15

Customization:

Customized logo(Min.Order: 1000 pieces)

Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Power Output: Delivers 20V MAX voltage and 4.0Ah capacity for sustained performance in power-intensive tasks.
  • Durability & Reliability: Rugged, coated square design with LED charge indicators ensures longevity and real-time power monitoring.
  • Compatibility: Designed for tools requiring 20V power, supporting multi-scenario applications.

Key features

  • 1. Material Technology

  • With a rugged, coated metal body, you can ensure durability in harsh environments compared to plastic-bodied batteries.*

  • 2. Interactive Design

  • With LED charge indicators, you can monitor battery levels at a glance, unlike models without visual feedback.*

  • 3. Performance Parameters

  • With a 20V 4.0Ah capacity, you can achieve longer runtime for heavy-duty tasks, outperforming standard 20V batteries in cycle life.*

  • 4. Scenario Solutions

  • With compatibility for 20V tools, you can power construction and DIY projects continuously, ideal for commercial or home use.*

  • 5. Certification Standards

  • With RoHS and ETL certifications, you can trust eco-friendly and safety compliance, exceeding basic industry standards.*

Product details

Lithium Battery Manufacturing Platform 787 Series 20V 4Ah Battery Deep Cycle Lithium Battery Pack with Longer Life

The LIANGY 787 Series 20V 4Ah Deep Cycle Lithium Battery Pack combines rugged durability with extended runtime, designed for heavy-duty applications. With a square, coated casing and turquoise-accented design, it withstands harsh environments while delivering reliable power for tools requiring 20V. Certified to RoHS and ETL standards, this battery ensures safety and environmental compliance.

Technical specifications

FeatureSpecificationBenefit
Voltage20V MAXEnsures compatibility with standard tools
Capacity4.0AhExtended runtime for prolonged use
CertificationsRoHS, ETLMeets global safety and environmental standards
ShapeSquare, rounded edgesCompact yet robust design for portability
SurfaceCoated finishResists scratches and corrosion
LED IndicatorsCharge level displayReal-time battery status monitoring
Cycle LifeDeep cycle (2000+ cycles)Withstands repeated deep discharges

Customization guide

Adjust voltage compatibility or capacity (e.g., 3.0Ah/5.0Ah variants) to meet specialized tool requirements. The coated surface can be customized with anti-slip textures for industrial safety compliance.

Get inspired

Whether you’re building a deck or powering handheld tools, the 787 Series delivers unmatched reliability. Its long cycle life and LED indicators ensure you stay productive without frequent recharges.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Capacity4.0Ah5.0Ah (+25%)6.0Ah (+50%)*
Cycle Life1500 cycles2000 cycles (+33%)2500 cycles (+67%)
Charging Speed2 hours1.5 hours (-25%)1 hour (-50%)
Temperature Range-10°C to 60°C-20°C to 60°C-30°C to 60°C

Supplier's note

  1. Three Technical Breakthroughs:

    • Deep Cycle Technology: 2000+ cycles (Pro Model) enable prolonged use in construction without degradation.
    • ETL/RoHS Compliance: Ensures safe disposal and reduced environmental impact.
    • LED Charge Indicators: Eliminate guesswork with real-time status updates.
  2. Optimal Version Selection:

    • Base Model: Ideal for occasional DIY users needing basic power (e.g., weekend projects).
    • Advanced Model: Perfect for professionals requiring 25% more runtime and wider temperature tolerance (-20°C).
    • Pro Model: Engineers and heavy-duty contractors benefit from 50% faster charging and extreme cold resistance (-30°C). With its 6.0Ah capacity, it outperforms industry benchmarks by 40% in sustained power delivery.

*Compared to standard 4.0Ah models.

Frequently asked questions

  • Which LIANGY 787 Series battery model is best for heavy-duty construction tools?

  • How to clean and maintain the coated surface of the LIANGY 20V 4Ah battery pack?

  • Lithium-ion vs. lead-acid batteries: Why choose the LIANGY 787 Series for deep cycle use?

  • Is the LIANGY 20V battery compatible with all 20V power tools?

  • Is the LIANGY 787 Series battery RoHS and ETL certified for safety?

  • How do the LED indicators on the LIANGY battery work for monitoring charge levels?

  • What makes the LIANGY 787 Series 20V battery suitable for prolonged DIY projects?

  • Does the LIANGY 787 Series battery support tool-specific customization?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage & CapacityPower tools for construction/DIYIndustry Standard: 18V/3Ah
Our Base: 20V/4Ah (▲)
Our Advanced: 20V/5Ah (▲▲)
▲ 20% more runtime vs. 3Ah
▲▲ 40% higher capacity for heavy-duty tasks
Base: Slightly bulkier than 18V competitors
Advanced: Requires compatible charger
Cycle LifeProfessional power tool usersIndustry Standard: 500 cycles
Our Base: 1000 cycles (▲)
Our Advanced: 1500 cycles (▲▲)
▲ Double lifespan vs. industry
▲▲ 3x longer durability for frequent use
Advanced: Higher upfront cost
Base: Still superior to most competitors
CertificationsCommercial/industrial applicationsIndustry Standard: CE
Our Base: RoHS/ETL (▲)
Our Advanced: RoHS/ETL/IP67 (▲▲)
▲ Compliance with EU/US safety standards
▲▲ Dust/water resistance (IP67) for harsh environments
Advanced: Bulkier design for IP67
Base: No IP rating
Charging TimeEmergency/field repairsIndustry Standard: 90 mins
Our Base: 60 mins (▲)
Our Advanced: 30 mins (▲▲)
▲ 33% faster charge than competitors
▲▲ Rapid charging for time-critical tasks
Advanced: Requires fast-charging adapter
Base: Standard charger included
WeightPortable power toolsIndustry Standard: 350g
Our Base: 300g (▲)
Our Advanced: 280g (▲▲)
▲ 14% lighter than industry average
▲▲ Ultra-portable for handheld tools
Advanced: Uses lightweight materials (potential durability trade-off)
Safety FeaturesHigh-risk environments (e.g., wet areas)Industry Standard: Basic overcharge protection
Our Base: Overcharge/overheat protection (▲)
Our Advanced: Smart thermal management + cell balancing (▲▲)
▲ Dual-layer safety for user/tool protection
▲▲ Real-time cell monitoring for reliability
Advanced: Slightly higher cost
Base: No thermal balancing

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