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SigmasTek  |  SKU: BW-19988

EverStart ES5L-BS High Performance Replacement Battery

Sale price $33.57 USD Regular price $42.68
Shipping calculated at checkout.

➤ Maintenance-free AGM design eliminates the need for acid filling

➤ Spillproof and leakproof construction for safe handling

➤ U.L. recognized and CE certified for quality assurance

➤ Valve regulated vent system enhances safety and reliability

➤ Superior starting power with extreme freeze, heat, and vibration resistance


📦🚀 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 | 4.5 AH

Terminal Type

Nut & Bolt

Compatible EverStart ES5L-BS Replacement Battery

The EverStart ES5L-BS is a compatible AGM maintenance-free replacement battery engineered to deliver reliable starting power and minimal upkeep. With its sealed, spillproof design you can avoid acid filling and routine maintenance while enjoying dependable performance on the road. If you’re searching for a replacement battery that performs as a high-performance battery and serves as a long-lasting battery for everyday motorcycle use, the EverStart ES5L-BS is built to meet those expectations.

Key Specifications

  • Maintenance-Free Design
  • Spillproof and Leakproof Design
  • U.L. Recognized and CE Certified
  • Absorbed Glass Mat Design
  • Valve Regulated Vent System
  • Extreme Freeze, Heat and Vibration Resistance
  • Superior Starting Power and Deep Cycle Capacity
  • Brand New, Factory Fresh
  • 6 Month Warranty
  • Brand: SigmasTek
  • Additional Brand Reference: EverStart
  • Model / Type: ES5L-BS
  • Voltage: 12 Volts
  • Capacity: 4.5 AH
  • Terminal Type: Nut & Bolt

Benefits

The EverStart ES5L-BS replacement battery uses Absorbed Glass Mat construction to provide a robust, maintenance-free design with excellent resistance to vibration, heat and freezing conditions. Its spillproof and valve-regulated vent system make it safe and convenient to install and use, eliminating the need for acid handling. As a high-performance battery, the ES5L-BS supplies the strong bursts of current needed for quick engine starts while maintaining deep cycle capacity for brief accessory use.

Longevity is a priority with this battery; engineered to resist the elements and routine vibration, the ES5L-BS functions as a long-lasting battery that performs in demanding conditions. Typical applications include motorcycle starters, small UPS and emergency backup systems, and portable tools that require reliable short-term power output. The maintenance-free nature ensures owners spend less time servicing and more time riding.

All EverStart ES5L-BS batteries are brand new, professionally tested and packaged to ensure quality. If you value dependable starts, low maintenance and durable construction, the ES5L-BS offers a practical, cost-effective solution.

Don’t wait — add the EverStart ES5L-BS replacement battery to your cart today for reliable performance, long-lasting service, and fast shipping on in-stock items.


Payment & Security

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