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SigmasTek  |  SKU: BW-15748

12V 35Ah High Performance Replacement Battery Set

Sale price $238.92 USD Regular price $274.37
Shipping calculated at checkout.

➤ Brand new, factory fresh 12V-32AH Gel rechargeable batteries

➤ 100% compatible with 12V-32AH GEL U1 battery models

➤ Includes a minimum one-year warranty for peace of mind

➤ UL listed for safety and quality assurance

➤ Best price guarantee for great value


📦🚀 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 | 35 AH

Terminal Type

Nut & Bolt

12V-32AH Gel Replacement Battery — Compatible with 12V-32AH GEL U1

Designed for full compatibility with the 12V-32AH GEL U1 model, this replacement battery delivers dependable performance, consistent recharge cycles, and the reliability you expect from a premium gel battery. Whether you need a backup for emergency systems, a dependable power source for mobility equipment, or a high-capacity option for off-grid devices, this 12V-32AH Gel replacement battery offers a high-performance battery solution that is factory fresh and built for long-lasting battery life.

Key Specifications

  • Model Compatibility: 12V-32AH GEL U1
  • Battery Type: Gel rechargeable battery
  • Voltage: 12 Volts
  • Capacity: 32 AH
  • Alternate/Set Listing Found in Product Text: Set Of 2 - 12V 35Ah Batteries
  • Terminal Type: Nut & Bolt
  • Brand Mentioned: SigmasTek
  • Certification: UL listed
  • Condition: Brand New, Factory Fresh
  • Warranty: Minimum one year warranty

Benefits

This replacement battery is engineered for durability and long life. The gel construction provides robust internal resistance characteristics that help protect cells, reduce the risk of leakage, and increase cycle longevity—delivering a long-lasting battery that will keep your critical systems running. As a high-performance battery, it offers stable voltage under load and consistent recharge acceptance, making it ideal for demanding standby and cyclic applications.

Durability features include factory-fresh assembly and UL listing for recognized safety and quality. The nut & bolt terminals offer secure, low-resistance connections for reliable current delivery. Typical applications include UPS systems, emergency lighting and power, mobility scooters and wheelchairs, security systems, and other consumer or medical electronics requiring a dependable 12V power source.

You’ll appreciate the maintenance-free nature of gel batteries and the peace of mind that comes with the included minimum one year warranty. This product is presented as a set option in the listing, giving buyers flexibility for single-unit replacement or paired installations.

Ready to upgrade to a dependable, high-performance replacement battery that delivers long-lasting battery life and proven reliability? Add the compatible 12V-32AH GEL U1 replacement battery to your cart now and secure reliable power for your equipment.


Payment & Security

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