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Brightway Group  |  SKU: BW-5570
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GNB Marathon M6V180 High Performance UPS Replacement Battery

Sale price $252.53 USD Regular price $276.34
Shipping calculated at checkout.
12 Volts, 55 Ah replacement battery for Enerwatt WPHR12-60 UPS
High rate discharge design for higher power output
Valve regulated, spill-proof for safe, maintenance-free use
Low self-discharge for extended shelf life
Factory fresh with 1-year warranty and certified quality standards
In Stock

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30-Day Easy Returns
OEM Fit Verified
📦 Fast Shipping | ↩️ 30-Day Returns | ✅ OEM Fit Verified

Key Specifications

Brand Replacement
GNB Marathon
Volts & Amps
6 Volts | 200 Ah
Terminal Type
Internal Thread
Technical Specifications
GNB Marathon M6V180 High Performance UPS Replacement Battery
Product Information
Amp Hours200 Ah
Voltage6 Volts
Terminal TypeInternal Thread
TypeUPS Batteries
Length (in.)12.09
Width (in.)6.65
Height (in.)8.66
Weight (lb.)59.4
Brand ReplacementGNB Marathon
ManufacturerBrightway Group
Warranty & Return Policy
Warranty 12 Months
Return Policy 30 Days
Last Updated: 10 March 2026

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Replacement GNB Marathon M6V180 — Compatible with GNB Marathon M6V180 UPS

Ensure continuous protection for your critical systems with this compatible replacement GNB Marathon M6V180 battery. Built for high-rate discharge performance and extended standby life, this replacement UPS battery is ideal for UPS applications, emergency power, and other battery-backed systems. The GNB Marathon M6V180 offers robust construction and proven AGM technology to deliver reliable, long-term service where uptime matters most.

Key Specifications

  • Replacement Model: GNB Marathon M6V180
  • Watts per Cell: 594 Watts per cell on 15-min rate at 1.67 Volts
  • Self-Discharge: Less than 3% per month
  • Expected Standby Life: Up to 10 years in standby use
  • Cycle Life: Up to 300 cycles at 100% discharge in cycle service
  • Construction: No-leak construction; Spill Proof Construction
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Case Material: ABS (UL94 V-0) flame retardant case
  • Condition: Brand New, Factory Fresh
  • Warranty: 3 Year Warranty
  • Safety Listing: UL Listed
  • Additional Details (as provided): Brightway Group, 6 Volts, 200 Ah, Internal Thread

Benefits

This GNB Marathon replacement is a high-performance UPS battery that provides the resilience and continuity required in demanding environments. Its high-rate discharge capability is well-suited for UPS systems that must deliver short bursts of high power during transfer or fault conditions. With low self-discharge and extended standby life, it serves as a long-lasting battery choice that reduces maintenance cycles and total cost of ownership.

Durability: The spill-proof AGM construction and flame-retardant ABS casing ensure robust performance and safe operation in enclosed battery compartments and vertical installations. Long life: With an expected standby life up to ten years and enhanced cycle capability, this battery is optimized for longevity in standby and cyclic applications alike. High performance: Professionally tested and UL listed, the GNB Marathon M6V180 replacement meets strict quality standards for safety and reliability.

Typical applications include Uninterruptible Power Supply (UPS) units for data and communications equipment, emergency power systems, and battery-powered tools compatible with the specified voltage and installation type. This replacement is a dependable option for facilities, telecom, and industrial settings that require consistent backup power.

Ready to upgrade your UPS protection? Purchase this replacement GNB Marathon M6V180 battery today for a high-performance UPS battery solution with proven longevity and reliable backup power. Add to cart now to secure fast shipment and long-term protection.



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