Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com

WELCOME5
SigmasTek  |  SKU: BW-10082

Merits P328 MP3F U1 High Performance Replacement Battery for Wheelchair 24.72 lb

11% off
New arrival
Sale price $122.99 USD Regular price $137.99
Shipping calculated at checkout.
Factory fresh replacement battery for Merits P328 MP3F U1 wheelchair
Uses Absorbent Glass Mat (AGM) technology for deep cycle durability
Valve regulated, spill-proof design ensures safe, maintenance-free use
High energy density offers superior power and longer run time
Backed by a 1-year warranty and CE/U.L. certifications for quality assurance
In stock

— Ready to ship immediately

Free shipping

Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.


✦

We ship your order same day if you buy it before 4 PM EST.

Send Your Battery Photo

Expert Technician 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 BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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.

Brand Replacement

SigmasTek

Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

Replacement Merits P328 MP3F U1 Battery (SP12-35 NB)

Upgrade your Merits P328 MP3F U1 with this factory-fresh, 100% compatible replacement battery designed for consistent performance and dependable reliability. This high-performance battery is built to meet the demands of mobility devices — delivering the stable power your wheelchair needs for daily use. If you need a long-lasting battery for your Merits P328 MP3F U1 (SP12-35 NB), this unit combines AGM technology and deep-cycle design to provide reliable run time and low maintenance.

Key Specifications

  • Compatible Model: Merits P328 MP3F U1
  • Replacement Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Battery Technology: Absorbent Glass Mat (AGM) Technology
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Energy Density: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Brand: SigmasTek
  • Terminal Type: Nut & Bolt

Benefits

  • Durability: Constructed with AGM and valve-regulated technology for spill-proof, maintenance-free operation that resists vibration and shock commonly encountered in mobility use.
  • Long Life: Engineered for deep cycle usage, this long-lasting battery delivers consistent discharge and recharge performance, extending usable life compared to standard flooded cells.
  • High Performance: The power/volume ratio provides unrivaled energy density, ensuring strong starting and sustained power output for typical wheelchair demands.
  • Reliable & Certified: U.L. recognized and CE certified for safety and performance, giving you confidence in real-world operation.
  • Versatile Applications: Ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters — and suitable as a trusted replacement battery in other low-voltage DC systems that require 12V 35AH capacity.
  • Maintenance-Friendly: AGM design is maintenance-free and spill-proof, simplifying installation and everyday use; retains performance without regular electrolyte checks.
  • Peace of Mind: Comes brand new with a 1 Year Warranty and performance guarantee to protect your investment.

Don’t let a weak battery limit your mobility — purchase this replacement battery for the Merits P328 MP3F U1 (SP12-35 NB) today. Order now to get a high-performance, long-lasting battery that ships quickly and restores reliable power to your mobility device.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)24.7

Product Highlights

  • Brand Replacement : Merits P328 MP3F
  • Manufacturer: SigmasTek
  • Product Type: Medical Equipment Batteries
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • MB WAY
  • 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.