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Brightway Group  |  SKU: BW-1154

Energizer EROF800 High Performance Replacement Battery By Bright Way

Sale price $91.99 USD Regular price $131.02
Shipping calculated at checkout.

➤ 12 volts, 35 amp-hours for reliable UPS backup

➤ NB terminal type for secure installation

➤ Perfect replacement for Energizer EROF800 UPS

➤ High performance and long-lasting durability


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ 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).


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Bright Way 12V 35Ah Replacement Battery for Energizer EROF800

Ensure continuous protection for your Energizer EROF800 UPS with the Bright Way 12V 35Ah replacement battery. Built for compatibility and dependable performance, this battery is a high-capacity, long-lasting battery solution that keeps your UPS ready to support critical loads during outages. Ideal for server closets, telecom gear, and emergency power systems, it restores full backup capability quickly and reliably.

Key Specifications

  • Designed for: Energizer EROF800
  • Voltage: 12V
  • Capacity: 35Ah
  • Terminal type: NB terminal
  • Brand: Bright Way
  • Referenced feature: Nut & Bolt (as listed in product text)

Benefits

This Bright Way replacement UPS battery is engineered to deliver sustained, reliable power for the Energizer EROF800. As a high-performance UPS battery, it offers a substantial 35Ah capacity at 12V, providing extended runtime and the ability to support larger or longer-duration loads than smaller batteries. The NB terminal ensures a solid, secure mechanical and electrical connection for stable performance under heavy usage.

Durability: Constructed to withstand frequent cycling and operational stress, this battery maintains integrity across many charge/discharge cycles. It’s built to minimize common failure points and offers dependable service in both residential and commercial environments.

Long Life: Optimized for longevity, the battery’s chemistry and build quality reduce capacity fade and extend usable service life. This long-lasting battery is an excellent choice for businesses and facilities that require reliable emergency power without frequent replacements.

High Performance: The combination of 12V 35Ah capacity and NB terminal connectivity results in efficient power delivery and minimal voltage drop under load. Typical applications include UPS backup for servers and networking equipment, emergency lighting systems, telecom gear, and other mission-critical electronics that depend on consistent backup power.

Whether replacing a worn unit or upgrading your UPS battery bank, this Bright Way 12V 35Ah battery is a robust, ready-to-install replacement that will restore the Energizer EROF800 to trusted backup readiness.

Ready to secure reliable backup power for your Energizer EROF800? Order this high-performance, long-lasting replacement UPS battery today and protect your critical systems.


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