For questions, quotes, or help finding the right battery, feel free to email us at sales@batteryweb.com

New collections added! Learn more

🎉 First Order Special 🎉

First-time shoppers get 5% OFF on batteries & accessories!

WELCOME5
SigmasTek  |  SKU: BW-13289

SigmasTek SPG12-32 GEL High Performance Replacement Battery Set

Sale price $241.63 USD Regular price $303.28
Shipping calculated at checkout.

➤ Genuine SigmasTek SPG12-32 GEL batteries with pure gel technology for reliable deep cycle performance

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

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

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

➤ Includes 2 batteries, factory fresh with 1-year warranty and UL listing for quality assurance


📦🚀 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.

📸 Send Your Battery Photo / Unsure? Expert Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR IMAGE

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 | 35 AH

Terminal Type

Nut & Bolt

SigmasTek SPG12-32 GEL Batteries Set (Model: SPG12-32)

Depend on the SigmasTek SPG12-32 GEL batteries set for reliable compatibility, consistent performance, and proven durability. This genuine set of two gel batteries is manufactured to meet or exceed OEM GEL specifications, making it an excellent replacement battery option for deep cycle and standby applications across marine, solar, and mobility equipment. If you need a high-performance battery that’s also a long-lasting battery solution, the SPG12-32 delivers dependable results.

Key Specifications

  • Brand: SigmasTek (genuine)
  • Model: SPG12-32
  • Quantity: Set of Two batteries
  • Technology: Pure Gel Technology (Not to Be Mistaken with Hybrid Gel)
  • Case: 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
  • Safety: UL Listed
  • Orientation: Can be operated in any orientation
  • Storage Note: Can be stored for up to 9 months at 25°C (77°F)
  • Applications Listed: Marine Applications, Solar Applications, Electric Wheelchairs, Scooters
  • Product Suffix From Text: SigmasTek SPG12-32 GEL Batteries Set Of 2 12 Volts35 AH
  • Terminal Type (listed): Nut & Bolt

Benefits

  • Robust Construction: The pure gel design and UL-rated ABS case offer superior resistance to leakage and environmental stress, delivering dependable service life.
  • Extended Service Life: Low self-discharge and factory-fresh condition help ensure the SPG12-32 remains ready for use months after purchase—ideal for backup and seasonal equipment.
  • Consistent High Performance: Suited for both cycle and standby roles, these batteries provide steady output under heavy loads, qualifying as a high-performance battery choice.
  • Versatile Applications: Perfect as a long-lasting battery for marine gear, solar banks, electric mobility devices, and also useful for UPS, emergency power, and portable power tools.
  • Easy Handling and Maintenance: Operable in any orientation and compatible with standard nut-and-bolt terminals for straightforward installation.
  • Certified Safety: UL listing and a one-year warranty give extra confidence in reliability and support.

Replace your aging batteries with the SigmasTek SPG12-32 GEL set now. Click to buy this reliable, high-performance battery duo and enjoy fast shipping and peace of mind.


Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.