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SigmasTek  |  SKU: BW-9914

Damaco D99 U1 Wheelchair High Performance Replacement Battery

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

➤ Factory fresh, brand new Damaco D99 U1 wheelchair batteries

➤ 100% compatible replacement for Damaco D99 U1 units

➤ Absorbent Glass Mat (AGM) technology for deep cycle use

➤ Valve regulated, spill-proof design for safety and reliability

➤ Includes 1-year warranty with guaranteed performance


📦🚀 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

Replacement Damaco D99 U1 Wheelchair Battery — Compatible Model: SP12-35 NB (Damaco D99 U1)

Restore peak performance to your Damaco D99 U1 mobility device with this factory-fresh replacement battery that delivers compatibility, dependable output, and proven reliability. Designed specifically to match the Damaco D99 U1 requirements, this replacement battery provides the steady power your wheelchair or mobility scooter needs for daily use and extended outings. Choose a high-performance battery that prioritizes runtime and safety.

Key Specifications

  • Compatible Model: Damaco D99 U1 (requires 2 batteries: SP12-35 NB)
  • Model Number: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Terminal Type: Nut & Bolt
  • Battery Technology: Absorbent Glass Mat (AGM)
  • Design: Deep Cycle Usage; Valve Regulated, Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year
  • Brand Reference: SigmasTek / Replacement for Damaco D99 U1
  • Performance: High power/volume energy density for extended run times

Benefits

Engineered for the rigorous needs of mobility equipment, this replacement battery offers enhanced durability and life expectancy through its AGM deep-cycle design. The valve-regulated, spill-proof construction minimizes maintenance and increases safety, while the high energy density delivers improved runtime between charges. These qualities make it an excellent, long-lasting battery option for everyday use.

  • Durability: Robust build and AGM internals resist vibration and mechanical stress common in mobility applications.
  • Long Life: Deep cycle characteristics support many charge/discharge cycles, extending overall service life.
  • High Performance: Stable power output ensures consistent motor performance and reliable operation.
  • Safety & Compliance: U.L. and CE certifications indicate high manufacturing and safety standards.
  • Typical Applications: Ideal for electric wheelchairs, power chairs, mobility chairs, and mobility scooters. Also appropriate for UPS backup, emergency power reserves, portable power solutions, and compatible tools that accept a 12V 35AH AGM battery.

Don’t let a weak battery limit your mobility. Purchase this replacement Damaco D99 U1 SP12-35 NB battery now to enjoy a dependable, long-lasting battery with fast shipping and a 1-year warranty.


Payment & Security

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