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SigmasTek  |  SKU: BW-8551

Quickie P500 U1 AGM High Performance Replacement Battery Set

Sale price $214.25 USD Regular price $280.53
Shipping calculated at checkout.

➤ Includes 2 high-performance 12V 35AH AGM batteries with NB terminals

➤ Maintenance-free and spill-proof design for hassle-free use

➤ SLA chemistry and AGM technology ensure long service life and durability

➤ Guaranteed compatibility with original Quickie P500 U1 AGM batteries

➤ Backed by a 1-year warranty and fast shipping within 1 business day


📦🚀 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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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

Quickie P500 U1 AGM Replacement Batteries — Compatible with Quickie P500 U1 AGM

Get reliable power for your Quickie P500 U1 AGM with this twin pack of replacement 12V 35AH batteries featuring NB (Nut & Bolt) terminals. These replacement battery units offer proven SLA/AGM technology, high-discharge capability, and a wide operating temperature range to deliver consistent, dependable performance. Designed to meet or exceed OEM specifications, these batteries are a practical choice for restoring range and reliability to your mobility device.

Key Specifications

  • Package contains: 2 batteries
  • Volts: 12
  • Amps (AH): 35
  • Terminal: NB (Nut & Bolt)
  • Weight: 49.4 Lbs (as listed)
  • Length: 7.72 (inches)
  • Width: 5.14 (inches)
  • Height: 6.14 (inches)
  • Maintenance-free
  • Spill Proof
  • SLA (Sealed Lead Acid) Chemistry
  • AGM Technology
  • Guaranteed compatibility with original batteries
  • 1-year Warranty (SigmasTek)
  • Shipping methods: UPS Ground and USPS
  • Ships in 1 business day for all in-stock items

Benefits

  • Rugged and safe: Sealed AGM construction ensures a maintenance-free, spill-proof replacement battery option that resists vibration and supports safe handling in mobility equipment.
  • Extended durability: With a high-discharge design and wide temperature tolerance, these Quickie P500 U1 AGM replacement batteries provide a long-lasting battery solution to reduce downtime and replacement frequency.
  • Steady power delivery: Designed as a high-performance battery set, these units supply consistent output for reliable operation, giving you predictable range and control with each charge.
  • Application flexibility: Ideal for power wheelchairs like the Quickie P500, and also suitable for UPS backup systems, emergency power applications, and compatible light tools requiring 12V 35AH SLA/AGM batteries.
  • Easy swap-in replacement: Install in the original configuration and reuse existing cables. Confirm dimensions before ordering since manufacturer requirements can change without notice.
  • Warranty & shipping assurance: Backed by SigmasTek’s 1-year warranty and expedited shipping options via UPS Ground or USPS for in-stock items.

Ready to upgrade? Add this high-performance, long-lasting replacement battery set for your Quickie P500 U1 AGM to your cart now for fast shipping and reliable warranty protection.


Payment & Security

Payment methods

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  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

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