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SigmasTek  |  SKU: BW-19854

EverStart ES12BS High Performance Replacement Battery

Sale price $72.80 USD Regular price $92.56
Shipping calculated at checkout.

➤ Maintenance-free AGM design eliminates acid filling and upkeep

➤ Spillproof and leakproof for safe, hassle-free use

➤ U.L. recognized and CE certified for guaranteed quality and safety

➤ Extreme resistance to freeze, heat, and vibration ensures reliable performance

➤ Superior starting power with deep cycle capacity for high-demand motorcycles


📦🚀 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 | 10 Ah

Terminal Type

Nut & Bolt

Replacement EverStart ES12BS Motorcycle Battery - Compatible with EverStart ES12BS

Designed as a direct replacement battery for the EverStart ES12BS, this AGM maintenance-free unit delivers dependable compatibility, superior starting power and dependable reliability for your motorcycle. Engineered for high-rate discharge applications, the EverStart ES12BS replacement battery is a high-performance battery built to meet the rigors of daily riding, intermittent starts, and accessory loads. Whether you're replacing an old battery or upgrading to an AGM for improved performance, this long-lasting battery provides spillproof safety, low maintenance, and consistent power when you need it most.

Key Specifications

  • Model: EverStart ES12BS (Replacement)
  • Design: AGM Maintenance Free / Absorbed Glass Mat Design
  • Voltage: 12 Volts
  • Capacity: 10 Ah
  • Terminal Type: Nut & Bolt
  • Brand / Replacement Supplier: SigmasTek (compatible with EverStart)
  • Maintenance-Free Design
  • Spillproof and Leakproof Design
  • U.L. Recognized and CE Certified
  • Valve Regulated Vent System
  • Extreme freeze, heat and vibration resistance
  • Superior starting power and deep cycle capacity
  • Brand New, Factory Fresh
  • Warranty: 6 Month Warranty

Benefits

This replacement EverStart ES12BS is built for durability and long life. The absorbed glass mat (AGM) construction offers a rugged design that withstands vibration, temperature extremes and the shocks of street and off-road use, so your bike starts reliably every time. As a high-performance battery, it provides the high-rate discharge necessary for quick engine cranking while also offering deep cycle capacity to support accessories and shorter rides between charges.

The spillproof, valve-regulated design eliminates the need to fill cells, making it maintenance-free and safe to handle. U.L. recognition and CE certification confirm manufacturing quality and safety standards. Riders who want a dependable, long-lasting battery appreciate the corrosion-resistant terminals and the robust nut & bolt connections that deliver secure, low-resistance power transfer under load.

Typical applications include motorcycles, scooters, and other powersports vehicles that demand fast starting and occasional deep-cycle use. It also serves well in small UPS setups, emergency power for accessories, and portable tools where a compact high-performance battery is required.

Ready to upgrade? Order your replacement EverStart ES12BS high-performance battery now and enjoy consistent starts, improved reliability and the confidence of a long-lasting battery backed by a 6 month warranty. Purchase today and get fast shipping on in-stock items.


Payment & Security

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