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SigmasTek  |  SKU: BW-9562

Merits P310 MP3C U1 High Performance Wheelchair Replacement Battery

Sale price $183.99 USD Regular price $280.53
Shipping calculated at checkout.

➤ Factory fresh replacement batteries for Merits P310 MP3C U1 wheelchair

➤ AGM technology ensures deep cycle performance and long battery life

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

➤ 100% compatible with original Merits P310 MP3C U1 unit and hardware

➤ Includes 1-year warranty for guaranteed reliability and 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 | 35 AH

Terminal Type

Nut & Bolt

Replacement Merits P310 MP3C U1 Batteries (SP12-35 NB) — Compatible with Merits P310 MP3C U1

Upgrade your Merits P310 MP3C U1 with a reliable, factory-fresh replacement battery solution designed for consistent performance and long-term reliability. These replacement Merits P310 MP3C U1 batteries (SP12-35 NB) provide the deep-cycle capacity and spill-proof construction needed for demanding mobility applications. Each unit is built using AGM technology and is engineered to deliver dependable power and a high power-to-volume ratio, making this a smart choice if you need a high-performance battery that is also a long-lasting battery for your chair. Note: the Merits P310 MP3C U1 requires two batteries and you must reuse existing cables and hardware from your original setup to connect the new batteries.

Key Specifications

  • Compatible Model: Merits P310 MP3C U1
  • Replacement Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH
  • Quantity Required: 2 batteries
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Usage: Designed For Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof Construction
  • Energy: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Performance: Performance Guaranteed
  • Brand: SigmasTek
  • Warranty: 1 Year Warranty

Benefits

  • Durability: Built with AGM and valve-regulated construction to resist vibration, contain electrolyte safely, and reduce maintenance — ideal for frequent use in mobility devices.
  • Long Life: Designed for deep-cycle usage to provide more charge/discharge cycles compared with standard batteries, making this a true long-lasting battery option for your Merits P310 MP3C U1.
  • High Performance: A high-performance battery by design, offering superior power-to-volume ratio so your mobility device runs efficiently and confidently between charges.
  • Safe and Certified: U.L. Recognized and CE Certified for peace of mind in both safety and quality standards.
  • Typical Applications: Perfect for electric wheelchairs, power chairs, mobility chairs, mobility scooters — and also suitable where compact, dependable DC power is needed such as emergency backup, UPS systems, and portable tools that accept similar battery specs.
  • Hassle-Free: Factory-fresh units arrive ready to install; simply use your existing cables and hardware for quick, secure replacement.

Ready to restore reliable mobility? Order your replacement battery pair for the Merits P310 MP3C U1 today and enjoy a high-performance battery that delivers dependable, long-lasting power. Buy now to get industry-leading value and fast shipping — upgrade with confidence.


Payment & Security

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