Electric Motorcycle • SLA Battery

12V 135Ah Deep-Cycle Lead-Acid Battery – Reliable Power for Industrial and Mobility Applications

Our 12V 135Ah lead-acid battery is the power solution you can always rely on. With rugged ABS casing, durable copper terminals, and excellent discharge performance, it’s engineered to perform in tough conditions. From industrial floor scrubbers and aerial platforms to mobility scooters and electric rickshaws, this battery keeps machines running smoothly around the world. It offers great temperature resilience, long cycle life, and easy installation, making it a smart choice for both businesses and everyday users. Dependable, efficient, and cost-effective—this battery delivers steady energy when and where you need it most.

ParametersSpecification
Voltage (V)12V
3hr Capacity (Ah)135
Dimensions (mm) (L × W × H × T/H)338 × 172 × 280 × 280
Weight (Kg)45.0
Material of ShellABS
Max Resistance (mΩ)4.0
TerminalCopper, M8 × 20 screw
Discharge Capacity (3hr)40°C: 105% / 25°C: 100% / 0°C: 90% / -20°C: 70%
Capacity ≥ (Ah, 25°C)20hr: 165 / 10hr: 150 / 3hr: 145 / 2hr: 135
Open-Circuit Voltage (V)13.0 ~ 13.4
Charging Voltage (V)Floating: 13.8 / Cycling: 14.7
Max Discharge Current (A)720
Max Charge Current (A)135
Residual Capacity After Self-Discharge30d: 90% / 60d: 85% / 90d: 82% / 180d: 80%
Hour RateCapacity (Ah)
20hr165
10hr150
3hr145
2hr135
CountryBrandMachine/Model
GermanyHakoScrubmaster B45
GermanyKärcherB 80 W Bp
DenmarkNilfiskSC800
ItalyComacC85
ItalyFimapMagna 75
United KingdomNumaticTTB 6055/100T
FranceTennantT300e
SpainTASKISwingo 1250
NetherlandsGenieGS-1932
PolandIPC GansowCT 70
United StatesTennantT7
United StatesJLG20MVL
United StatesAdvance (Nilfisk)SC750
CanadaNoblesSpeedScrub 5700
MexicoTennant5680
BrazilKärcherB 60 W Bp
IndiaYC ElectricYatri Deluxe (E-Rickshaw)
IndiaAtul AutoElite Plus (Lead Acid)
ThailandHakoScrubmaster B70
MalaysiaNilfiskSC500
  • Charge Regularly, Don’t Wait Too Long
    Try not to run your battery all the way down before charging. Keeping it above 30–40% helps prevent deep discharge, which can shorten lifespan.

  • Use the Right Charger
    Always match your charger to the battery type and voltage. A quality charger with automatic cut-off or pulse technology keeps the battery healthier.

  • Avoid Overcharging
    Leaving the battery on charge for too long can cause overheating and water loss. Use a charger with float or smart charging mode to stop at the right time.

  • Keep It Cool, But Not Freezing
    Extreme heat speeds up chemical aging, while freezing cold reduces capacity. Store and operate your battery in moderate temperatures whenever possible.

  • Check Terminals Regularly
    Clean the terminals to avoid corrosion. A quick wipe with a dry cloth or a brush helps maintain a strong connection.

  • Tight Installation Matters
    Secure the battery firmly in place. Excessive vibration can damage the plates inside and shorten battery life.

  • Give It a Full Charge After Storage
    If your battery hasn’t been used for a while, give it a full recharge before putting it back to work. This restores performance and prevents sulfation.

  • Avoid Short, Frequent Charging
    Partial and too-frequent charging cycles can stress the battery. Let it reach a good depth of discharge before recharging (but not too low!).

  • Keep It Clean & Dry
    Dirt and moisture on the case can lead to self-discharge. Wipe the outer shell to keep it clean and safe.

  • Plan Regular Maintenance
    For long-term use, check voltage and capacity every few months. A little attention goes a long way in extending battery life.

1. Before You Start

  • 🔍 Check the Battery: Make sure the battery is free from cracks, leaks, or damage.

  • 📦 Unpack Carefully: Handle with care; it’s heavy (about 45kg). Always lift with both hands or use lifting equipment.

  • Safety First: Wear gloves and safety glasses when handling. Keep away from sparks, fire, and open flames.


2. Installation Steps

  1. Prepare the Compartment

    • Ensure the battery area is clean, dry, and secure.

    • Remove any dust, oil, or old corrosion.

  2. Position the Battery

    • Place the battery upright and secure it firmly to avoid vibrations during use.

    • Do not tilt or invert the battery.

  3. Connect the Cables

    • Connect the positive (+) cable first.

    • Then connect the negative (–) cable.

    • Tighten screws (M8×20) securely but do not overtighten.

  4. Check the Connections

    • Ensure cables are firmly attached and not loose.

    • Apply a thin layer of anti-corrosion grease if available.


3. Charging Guide

  • 🔌 First Charge: Fully charge the battery before using it for the first time.

  • 🌡 Charging Voltage:

    • Floating: 13.8V

    • Cycling: 14.7V

  • Avoid Overcharging: Use a smart charger with automatic cut-off.

  • ❄️ Temperature Tips: Charge in a well-ventilated, cool environment. Avoid direct sunlight or freezing conditions.


4. Usage Tips

  • ✅ Recharge the battery after each use or when voltage drops.

  • ✅ Avoid deep discharge (don’t run it completely empty).

  • ✅ Keep the outer surface and terminals clean and dry.

  • ✅ Secure the battery firmly to reduce shock and vibration.


5. Storage Instructions

  • Store in a cool, dry place.

  • Recharge every 2–3 months if not in use.

  • Do not leave the battery in a discharged state for a long time.


6. Safety Reminders

  • Do not short-circuit the terminals.

  • Keep away from children and pets.

  • In case of acid leakage, rinse immediately with clean water and seek medical advice if it contacts skin or eyes.

Certifications

  • CE / RoHS compliance
  • ISO 9001 quality management
  • Transport: UN 2800 packaging guidance

Warranty

12‑month limited warranty against manufacturing defects. Technical support available for installation and charging best practices.

Why Choose Our 12V 135Ah Lead-Acid Battery?

Power You Can Count On – 12V 135Ah Lead-Acid Battery for Everyday Machines

Premium No. 1 Refined Lead

Made with ultra-pure lead (purity >99.994%), our battery delivers superior performance in capacity, charging efficiency, and discharge capability, ensuring a reliable power source for your electric vehicle.

High-Strength ABS Plastic Shell

The robust ABS casing offers exceptional impact and vibration resistance, protecting the battery from damage and ensuring long-term durability even in demanding conditions.

Optimized Internal Design

Our innovative internal layout extends battery lifespan and enhances safety, minimizing risks and maximizing reliability for worry-free operation.

High-Quality Active Materials

Premium active materials provide higher energy density and better utilization rates, resulting in stronger performance and longer-lasting power.

Multi-Microporous AGM Separator

The advanced AGM separator improves sealing efficiency, prevents active material shedding from the positive plate, and boosts battery capacity and lifespan.

Golden Acid Ratio

Our precisely formulated acid composition enhances performance, delivering stronger power output and enabling longer rides with extended durability.

Graphene Patent Technology

Incorporating cutting-edge graphene technology, our battery offers improved conductivity and efficiency, setting it apart from conventional lead-acid batteries.

Advanced Formula & Computerized Assembly

Our state-of-the-art manufacturing process, combined with high-purity refined lead, ensures heat and cold resistance, delivering a longer-lasting and more reliable battery.

Certifications & Warranty

Product Certifications

  • CE • UN38.3 • RoHS
  • Shipping documents: MSDS, Test Report

Factory Certifications

  • ISO 9001 • ISO 14001
  • End-of-line testing with traceability

Warranty

One year from the date of shipment

Purchase & Support

Ordering

  • MOQ: 500 units (customizable for pilot)
  • Lead time: 7–15 days (stock) / 25–35 days (OEM)
  • Trade terms: EXW / FOB / CIF / DDP

Packaging

  • Anti-shock foam and insulated terminals
  • UN-certified cartons for air/sea transport
  • Palletized for bulk shipments

Downloads

  • Datasheet (PDF)
  • MSDS
  • Test Report

Frequently Asked Questions (FAQ)

How long does a 12V 135Ah battery last?

With proper care, it can last 3–5 years. Regular charging and avoiding deep discharges help extend its life.

How long can this battery run my equipment?

It depends on the load. For example, a device drawing 135 watts could run for about 10 hours. Heavier loads will shorten runtime.

Can I use this battery for solar storage?

Yes! It works very well for solar systems, providing reliable backup power when the sun goes down.

Do I need a special charger for this battery?

A smart charger designed for lead-acid batteries is best. It prevents overcharging and keeps the battery healthy.

How often should I charge the battery if not in use?

If stored, give it a full recharge every 2–3 months to prevent sulfation and keep it in good shape.

Is it safe to use indoors?

It’s safe when used in ventilated areas. Avoid sealing it in small, unventilated spaces, as all lead-acid batteries may release gases.

Can it handle hot or cold weather?

Yes, it’s built to perform in a wide range of temperatures. Just keep in mind that extreme cold reduces capacity, while extreme heat may shorten lifespan.

How do I know when it needs recharging?

If the voltage drops below 12.0V or the performance feels weaker, it’s time to recharge. Don’t wait until it’s completely drained.

Can I use multiple 12V 135Ah batteries together?

Absolutely! You can connect them in series or parallel to build larger systems, as long as they’re the same type and age.

What maintenance does it need?

Keep the terminals clean, check the voltage regularly, and store it fully charged. With a little care, it will serve you well for years.

What Customers Say

Request a Quote

Tell us your application, voltage/capacity, target quantity, and delivery terms. Our team will reply within 24 hours.

    Related Products