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SigmasTek  |  SKU: BW-10089

Leisure Lift U1 High Performance Replacement Battery for Wheelchair

Sale price $91.99 USD Regular price $140.27
Shipping calculated at checkout.

➤ Factory fresh, brand new replacement battery for Leisure Lift U1 wheelchair

➤ Uses Absorbent Glass Mat (AGM) technology for reliable deep cycle performance

➤ Valve regulated and spill-proof design ensures safe, maintenance-free use

➤ 100% compatible with original Leisure Lift U1 unit, requires existing cables/hardware

➤ Backed by 1-year warranty and certified for quality and safety standards


📦🚀 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 | 35 AH

Terminal Type

Nut & Bolt

SP12-35 NB (12V 35AH) Replacement Battery for Leisure Lift U1

Replace your Leisure Lift Leisure Lift U1 battery with this factory-fresh SP12-35 NB (12V 35 AH) replacement battery designed for full compatibility and reliable performance. This long-lasting battery is engineered for deep-cycle applications, delivering the steady power your Leisure Lift U1 needs for daily mobility and dependable operation when it matters most.

Key Specifications

  • Model: SP12-35 NB (12 V 35 AH)
  • Compatible With: Leisure Lift Leisure Lift U1
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage Type: Designed For Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Performance Feature: 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
  • Performance: Performance Guaranteed

Benefits

The SP12-35 NB is a high-performance battery purpose-built for mobility devices requiring deep-cycle capability. AGM construction offers a maintenance-free, spill-proof solution that withstands repeated charging cycles without the need for watering or frequent upkeep. Its high energy density delivers more usable power per volume, making it a compact yet long-lasting battery ideal for the confined battery bays of mobility chairs and scooters.

Durable nut & bolt terminals ensure a secure electrical connection and facilitate straightforward installation when reusing the original cables and mounting hardware. Because it is U.L. Recognized and CE Certified, the battery meets safety and regulatory expectations for consumer mobility products. Typical uses include electric wheelchairs, power chairs, mobility chairs, and mobility scooters—anywhere consistent, reliable discharge and recharge performance is required.

Beyond mobility, this replacement battery can also serve in UPS backups, emergency power situations, and small portable power systems where dependable deep-cycle performance and long life matter. The manufacturer’s one-year warranty and performance guarantee add a layer of protection and confidence with every purchase.

Order your SP12-35 NB replacement battery for the Leisure Lift Leisure Lift U1 today to restore optimal runtime and enjoy dependable, long-lasting battery power with rapid shipping and trusted compatibility.


Payment & Security

Payment methods

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