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SigmasTek  |  SKU: BW-13285

SigmasTek SPG12-55 IT GEL Compatible Replacement Battery

Sale price $219.49 USD Regular price $275.49
Shipping calculated at checkout.

➤ Genuine replacement SigmasTek SPG12-55 IT GEL battery with pure gel technology

➤ Meets or exceeds OEM GEL battery specifications for reliable performance

➤ Low self-discharge rate of less than 2% per month for longer shelf life

➤ Durable ABS (UL94 V-0) case ensures safety and protection

➤ Versatile use in marine, solar, electric wheelchair, and scooter applications


📦🚀 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 | 55 AH

Terminal Type

Internal Thread

Replacement SigmasTek SPG12-55 IT GEL Battery (Compatible with SigmasTek SPG12-55 IT)

When dependable backup power matters, choose this genuine replacement SigmasTek SPG12-55 IT GEL battery. Engineered to meet or exceed OEM GEL specifications, this high-performance battery delivers stable deep-cycle and standby performance for critical applications. With pure gel technology and UL listing, this replacement battery offers the reliability and consistent output required by mobility, renewable energy, and emergency systems.

Key Specifications

  • Model: SigmasTek SPG12-55 IT (replacement / genuine)
  • Chemistry: Pure Gel Technology (not hybrid gel)
  • Case Material: ABS (UL94 V-0)
  • Self-discharge Rate: Less than 2% per month
  • Expected Life (Standby Use): 3 - 5 years
  • Condition: Brand New and Factory Fresh
  • Warranty: 1 Year Warranty
  • Listings/Certification: UL Listed
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Terminal Type: Internal Thread
  • Seller/Replacement Brand: SigmasTek
  • Operational Orientation: Can be operated in any orientation
  • Storage Recommendation: Can be stored up to 9 months at 25°C (77°F) before a freshening charge; shorter at higher temperatures

Benefits

  • Durability: The pure gel electrolyte and UL94 V-0 ABS case protect internal cells and resist vibration and shock, making it suitable for mobile and marine environments.
  • Long Life: Low monthly self-discharge and a 3–5 year standby expectancy provide a long-lasting battery solution for reserve power applications.
  • High Performance: Optimized for repetitive deep-cycle use and stable standby operation, this high-performance battery supports critical loads without rapid capacity fade.
  • Wide Application Range: Ideal for marine systems, solar power storage, electric wheelchairs, scooters, and other mobility devices—also excellent for UPS units, emergency power backups, and portable tools that demand reliable reserve energy.
  • Maintenance-Free & Safe: Sealed GEL construction reduces maintenance requirements and eliminates spills while providing stable performance across a broad temperature range.
  • Installation Flexibility: Internal thread terminals and the ability to operate in any orientation make it easy to fit into varied chassis and enclosures.

Don't risk downtime—choose this genuine replacement SigmasTek SPG12-55 IT long-lasting battery to ensure dependable operation. Buy now to secure high-performance replacement power and fast shipping on in-stock items.


Payment & Security

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