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SigmasTek  |  SKU: BW-8813

Permobil Entra Corpus High Performance Wheelchair Replacement Battery

Sale price $425.70 USD Regular price $557.39
Shipping calculated at checkout.

➤ Factory fresh, brand new replacement wheelchair batteries for reliable performance

➤ 100% compatible with wheelchairs and electric scooters requiring 12V 75AH batteries

➤ Absorbent Glass Mat (AGM) technology for deep cycle, spill-proof, and maintenance-free use

➤ High energy density with valve-regulated design for longer battery life and consistent power

➤ U.L. recognized, CE certified, and backed by a 1-year warranty for peace of mind


📦🚀 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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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.
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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 | 75 AH

Terminal Type

Nut & Bolt

Replacement Wheelchair Battery SP12-75 NB — Compatible with Wheelchair / Electric Scooter (12V 75AH)

Give your wheelchair or electric scooter renewed runtime with this factory fresh replacement battery. The SP12-75 NB is a purpose-built, high-capacity unit that is 100% compatible with wheelchairs and scooters that require 12V 75AH batteries. If your vehicle needs two batteries, these replacement units provide the reliable performance and long-lasting battery life you need for daily mobility and extended trips.

Key Specifications

  • Brand: SigmasTek
  • Battery Model: SP12-75 NB
  • Compatible With: Wheelchair / Electric Scooter
  • Voltage: 12 Volts
  • Capacity: 75 AH
  • Quantity Required: 2 batteries (per vehicle)
  • Technology: Absorbent Glass Mat (AGM)
  • Usage Type: Designed for Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Terminal Type: Nut & Bolt
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Performance: Performance Guaranteed

Benefits

As a high-performance battery, the SP12-75 NB offers superior energy density and extended run time compared with lower-capacity cells. Its AGM construction provides a maintenance-free, sealed design that resists vibration and prevents spills — an important consideration for mobility equipment. The deep-cycle orientation means this replacement battery is optimized to handle repeated discharge and recharge cycles, delivering a long-lasting battery solution you can count on.

Durability and safety are key advantages: valve-regulated design, UL and CE recognition, and factory-fresh condition ensure dependable operation and peace of mind. Whether you use your device for daily transport, long excursions, or occasional heavy loads, this replacement battery helps maintain consistent performance. Typical uses include electric wheelchairs, power chairs, mobility chairs, and mobility scooters. It can also be a practical option in certain UPS or emergency power setups where a dependable, long-lasting battery is needed.

Installation is simple when you retain your original cables and hardware; these replacement batteries are designed to drop into existing configurations without modification. If you need help selecting the right battery or confirming compatibility, customer service is available at (800) 657-1303 or via e-mail.

Don’t wait — secure the long-lasting battery power your mobility device needs. Order the SP12-75 NB replacement battery today for dependable runtime and fast fulfillment.


Payment & Security

Payment methods

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