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-8545

IMC Heartway Rumba SR P4R U1 High Performance Compatible Replacement Battery Set 49.45 lb

10% off
New arrival
Sale price $245.99 USD Regular price $272.99
Shipping calculated at checkout.
Includes 2 high-performance 12V 35AH replacement batteries
Maintenance-free and spill-proof with advanced AGM technology
Guaranteed compatibility with original IMC Heartway Rumba SR P4R U1 batteries
Wide operating temperature range for reliable wheelchair power
1-year warranty ensures durability and peace of mind
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.


Volts & Amps

12 Volts | 35 AH

Terminal Type

Nut & Bolt

IMC Heartway Rumba SR P4R U1 Replacement Battery (2 x 12V 35AH, NB Terminal)

Get dependable, high-performance power for your IMC Heartway Rumba SR P4R U1 with this matched replacement battery set. Tailored for the IMC Heartway Rumba SR P4R U1 model, this two-pack of 12V 35AH AGM batteries with NB terminals delivers steady discharge, excellent durability, and long-lasting battery life. These batteries are maintenance-free, spill-proof, and built to meet or exceed original manufacturer specifications, offering a trusted replacement battery solution for mobility users.

Key Specifications

  • Compatible model: IMC Heartway Rumba SR P4R U1
  • Package contains: 2 batteries
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amps)
  • Terminal type: NB (Nut & Bolt)
  • Chemistry: SLA (Sealed Lead Acid)
  • Technology: AGM (Absorbent Glass Mat)
  • Maintenance-free and Spill Proof
  • Guaranteed compatibility with original batteries
  • Weight: 49.4 Lbs
  • Dimensions: Length 7.72 in, Width 5.14 in, Height 6.14 in
  • Warranty: 1-year Warranty
  • Brand: SigmasTek
  • Shipping methods: UPS Ground and USPS
  • Ships in 1 business day for all in-stock items

Benefits

  • Durability: Solid AGM construction offers resistance to vibration and shock for reliable wheelchair performance.
  • Long life: Designed with a high-discharge profile and wide operating temperature range for an extended service life and a long-lasting battery solution.
  • High performance: Consistent, dependable power output supports smooth motor operation and reliable starts.
  • Maintenance-free convenience: Sealed, spill-proof design eliminates the need for regular maintenance and reduces risk of spills.
  • Multiple applications: Ideally used as a replacement battery for wheelchairs; also suitable for UPS backup, emergency power, and small tools requiring dependable 12V 35AH energy.
  • Easy replacement: Install in the same original configuration while reusing existing cables; NB terminals provide secure, straightforward hookups.
  • Trusted support: Includes fast shipping and a 1-year warranty to minimize downtime and ensure satisfaction.

Don’t wait for power failure — replace your IMC Heartway Rumba SR P4R U1 batteries today with this dependable, high-performance battery pack. Order now to restore mobility and enjoy quick shipping and reliable performance.

Technical Specifications

Voltage12 Volts
Amp Hours35 AH
Terminal TypeNut & Bolt
Length (in.)7.72
Width (in.)5.14
Height (in.)6.22
Weight (lb.)49.4

Product Highlights

  • Brand Replacement : IMC Heartway Rumba
  • 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
  • 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.