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SigmasTek  |  SKU: BW-13279

Set of 2 22NF GEL Premium Replacement Battery Set

Sale price $601.04 USD Regular price $754.41
Shipping calculated at checkout.

➤ Set of two genuine SigmasTek SPG12-55 GEL batteries for reliable dual power

➤ Pure Gel Technology ensures superior deep cycle performance and durability

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

➤ Suitable for marine, solar, electric wheelchair, and scooter applications

➤ ABS (UL94 V-0) case and UL listing guarantee safety and quality compliance


📦🚀 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

Nut & Bolt

SigmasTek SPG12-55 GEL Battery (Set of 2) — Compatible with SPG12-55

This set of two genuine SigmasTek SPG12-55 GEL batteries is a purpose-built replacement battery solution that balances deep-cycle endurance with reliable standby performance. Engineered with pure gel technology, these batteries deliver consistent, high-performance power for solar, marine, mobility, and backup applications while offering long-lasting battery life and low self-discharge for extended storage.

Key Specifications

  • Model: SigmasTek SPG12-55 (Set of 2)
  • Battery Type: GEL (Pure Gel Technology)
  • Voltage: 12 Volts
  • Capacity: 55 AH
  • Terminal: Nut & Bolt
  • Case Material: ABS (UL94 V-0)
  • Self-discharge Rate: Less than 2% per month
  • Expected Life in Standby Use: 3 - 5 years
  • Condition: Brand New, Factory Fresh
  • Certifications: UL Listed
  • Warranty: 1 Year
  • Storage Note: Can be stored up to 9 months at 25°C (77°F) before a freshening charge is recommended

Benefits

The SigmasTek SPG12-55 GEL batteries deliver exceptional durability and a long life profile thanks to pure gel chemistry that provides strong resistance to vibration and deep discharge cycling. As a high-performance battery option, this set of two is ideal for repeated cycling and dependable standby use. These are true gel batteries (not hybrid gel), offering consistent charge/discharge characteristics and excellent longevity.

Low self-discharge (<2% per month) means these batteries remain ready for use after extended storage, making them a reliable long-lasting battery choice for seasonal or infrequent use. The UL94 V-0 ABS case and UL listing ensure robust safety and flame-retardant protection for demanding environments.

Typical applications include marine systems, solar arrays, electric wheelchairs, scooters, mobility equipment, and other deep-cycle uses. The SPG12-55 set can be used in both cycle and standby applications, and they are designed to operate in any orientation for flexible installation options.

Buy your replacement SigmasTek SPG12-55 GEL battery set with confidence today. Orders for in-stock items ship quickly — add this high-performance, long-lasting battery pair to your cart now to ensure reliable power for your equipment.


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