MTD M660G Lawn Mower High Performance Replacement Battery
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⚠️ 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 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 MTD M660G Lawn Mower Battery - Compatible with MTD M660G
Replace your worn battery with this factory-fresh, direct-fit replacement for the MTD M660G. Designed for reliable starts and steady output, this high-performance battery is built to meet the demands of regular lawn care and seasonal workloads. With proven construction and certified safety features, the MTD M660G replacement battery provides the dependable energy you need for consistent mower performance and long-term reliability.
Key Specifications
- Model Compatibility: MTD M660G
- Required Quantity: 1 battery
- Part Number: SP12-35 NB
- Voltage: 12 V
- Capacity: 35 AH
- Technology: Absorbent Glass Mat (AGM) Technology
- Usage Type: Designed For Deep Cycle Usage
- Construction: Valve Regulated Spill Proof Construction
- Energy Density: Power/Volume Ratio Yielding Unrivaled Energy Density
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Connection Hardware: Nut & Bolt
- Performance: Performance Guaranteed
Benefits
Built with AGM technology and valve-regulated construction, this replacement battery delivers rugged durability and tolerance to vibration—ideal for lawn mowers and outdoor equipment. The deep-cycle design supports repeated discharge and recharge cycles, providing a long-lasting battery solution for frequent use. Because of its superior energy density, you get more usable power in a compact package, making it a smart upgrade for compact mower compartments.
The MTD M660G battery is engineered to provide reliable starting power and consistent runtime across a variety of applications: residential lawn mowers, small utility vehicles, emergency backup, and portable tools. For UPS or emergency power setups where a dependable standby battery is required, this unit’s spill-proof and certified construction adds safety and peace of mind. As a high-performance battery and replacement option, it requires minimal maintenance when installed using your existing cables and hardware.
Installation is straightforward—reuse the original mounting hardware and connections for a secure fit that restores reliable operation quickly. The factory-fresh condition and one-year warranty offer additional assurance of quality.
Don’t wait to replace a failing battery. Buy your replacement MTD M660G battery now to get a long-lasting battery that delivers consistent, high-performance power — typically ships within 24 hours. Add to cart and get back to mowing with confidence.
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