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SigmasTek  |  SKU: BW-19955

Mainstream MSX5L Compatible Replacement Battery

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

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

➤ Spillproof and leakproof for safe, hassle-free handling

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

➤ High starting power with excellent deep cycle capacity for motorcycles

➤ Built to resist extreme freeze, heat, and vibration conditions


📦🚀 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

Replacement Mainstream MSX5L Motorcycle Battery

This direct-fit replacement for the Mainstream MSX5L is an AGM maintenance-free battery engineered for reliable starting, rugged durability and worry-free ownership. If you’re looking for a high-performance battery that offers spillproof safety and steady power for your motorcycle, scooter or similar powersport vehicle, this Mainstream MSX5L-compatible unit delivers long-lasting battery life and dependable performance ride after ride.

Key Specifications

  • Compatible Model: Mainstream MSX5L
  • Design: AGM Maintenance Free
  • Maintenance: Maintenance-Free Design
  • Safety: Spillproof and Leakproof Design
  • Certifications: U.L. Recognized and CE Certified
  • Construction: Absorbed Glass Mat Design
  • Vent System: Valve Regulated Vent System
  • Resistance: Extreme Freeze, Heat and Vibration Resistance
  • Performance: Superior Starting Power and Deep Cycle Capacity
  • Condition: Brand New, Factory Fresh
  • Warranty: 6 Month Warranty
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 4.5 AH
  • Terminal Type: Nut & Bolt

Benefits

Built for riders who expect more, this replacement battery combines an absorbed glass mat design and valve-regulated construction to provide a long-lasting battery that performs in diverse conditions. The maintenance-free, spillproof build eliminates messy acid top-ups and reduces service time, making upkeep effortless while preserving battery life.

As a high-performance battery, it supplies the quick, high-rate discharge required for reliable engine starts and supports accessory loads. Its resistance to extreme freeze, heat and vibration makes it ideal for everyday street use, off-road adventures and seasonal storage. Typical applications include motorcycles, scooters and small powersports where compact, robust power is essential.

Safety certifications (U.L. and CE) and factory-fresh condition add peace of mind, and the included 6 month warranty underscores the product’s reliability. Professional testing and secure packaging further ensure you receive a dependable product ready to install.

Don’t wait for starting issues — choose this long-lasting replacement battery for your Mainstream MSX5L and upgrade to a maintenance-free, high-performance battery today. Order now for fast shipping and dependable power.


Payment & Security

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