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SigmasTek  |  SKU: BW-8833

Permobil Robo Miniflex Wheelchair Compatible Replacement Battery

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

➤ Factory fresh, high-quality replacement wheelchair batteries

➤ 100% compatible with your wheelchair or electric scooter

➤ AGM technology for deep cycle use and spill-proof safety

➤ U.L. recognized and CE certified for reliable performance

➤ Includes 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.

📸 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.
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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 Battery for SP12-75 NB (12 V 75 AH) — SigmasTek Wheelchair Battery

This SigmasTek replacement battery for the SP12-75 NB (12 V 75 AH) is factory fresh and engineered for dependable, high-performance operation in your mobility device. Built to be 100% compatible with the specified wheelchair or electric scooter, this long-lasting battery restores runtime and responsiveness so you can travel with confidence. Remember that this wheelchair requires 2 batteries and you should reuse your existing cables and hardware when installing the new batteries.

Key Specifications

  • Brand: SigmasTek
  • Model: SP12-75 NB (12 V 75 AH)
  • Voltage: 12 Volts
  • Capacity: 75 AH
  • Terminal: Nut & Bolt
  • Battery Type: Absorbent Glass Mat (AGM) Technology
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated, Spill Proof
  • Energy Density: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Warranty: 1 Year Warranty
  • Installation Requirement: Requires 2 batteries per wheelchair; use original cables/hardware

Benefits

Choose this replacement battery for proven durability and consistent, long-term power delivery. The AGM construction offers spill-proof safety and low maintenance while supporting deep-cycle performance that keeps capacity over repeated charges. If you need a high-performance battery to restore full mobility, this SigmasTek option gives you a dependable, long-lasting battery solution engineered for everyday use.

High energy density means more power in a compact package, maximizing runtime without adding bulk to your chair or scooter. The valve-regulated design and industry certifications deliver safety and peace of mind in addition to sustained performance. Whether used in electric wheelchairs, power chairs, mobility chairs, or mobility scooters, this replacement battery is suited for continuous duty and frequent use.

Beyond mobility, many buyers rely on these deep-cycle batteries for backup power, emergency power systems, and portable tool applications that demand steady, repeatable power delivery. The included 1 year warranty and performance guarantee ensure you can buy with confidence and rely on consistent operation.

Don’t wait — restore full power to your mobility device with the SP12-75 NB replacement battery today. Add to cart now for fast shipping and reliable customer support.


Payment & Security

Payment methods

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