Merits Pioneer 3 S131 High Performance Wheelchair Replacement Battery
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Battery Care Guide
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
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
⚠️ 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 Pioneer 3 S131 Batteries — SP12-35 NB (12V 35AH) — SigmasTek
Replace worn batteries in your Merits Pioneer 3 S131 with these brand new, factory-fresh SP12-35 NB replacement batteries. Each unit is a 12V 35AH deep-cycle battery built with AGM technology to provide reliable energy and extended runtime for your mobility device. Designed for the specific needs of power chairs and scooters, this long-lasting battery solution restores performance and increases confidence while on the move.
Key Specifications
- Battery Model: SP12-35 NB
- Voltage: 12 Volts
- Capacity: 35 AH
- Technology: Absorbent Glass Mat (AGM) Technology
- Usage: Designed for Deep Cycle Usage
- Construction: Valve Regulated Spill Proof Construction
- Performance: 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 (as indicated)
- Terminal/Connection: Nut & Bolt
- Compatibility: Merits Pioneer 3 S131 (requires 2 batteries)
Benefits
These replacement batteries are crafted to deliver the durability and longevity needed for mobility devices. AGM technology provides spill-proof, maintenance-free operation and improved vibration resistance—important attributes for daily wheelchair and scooter use. As a high-performance battery option, the SP12-35 NB supports deep-cycle demands, allowing repeated discharges and recharges while maintaining capacity and responsiveness.
The valve-regulated construction ensures safety and reliability, and the high power-to-volume ratio offers strong energy density without unnecessary bulk. Certified to U.L. and CE standards, these factory-fresh batteries ship ready for installation and are backed by a 1 year warranty and a performance guarantee for added assurance.
Typical applications include electric wheelchairs, power chairs, mobility chairs, and mobility scooters—scenarios where a dependable, long-lasting battery directly impacts independence and mobility. The nut & bolt terminals match standard hardware, and the product guidance specifies reusing existing cables and connectors to ensure correct installation.
When you need dependable runtime and low maintenance, this replacement battery set for the Merits Pioneer 3 S131 offers a practical, cost-effective way to restore vehicle performance and confidence for daily travel.
Buy your replacement Merits Pioneer 3 S131 batteries today and enjoy reliable, long-lasting battery power for your mobility device.
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