SP12-18 (NB) 12V 18AH SLA YardWorks Compatible Replacement Battery Set
Couldn't load pickup availability
⚠️ 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.
📸 Send Your Battery Photo / Unsure? Expert Help
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.
POST YOUR IMAGE
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 | 18 Ah
Terminal Type
Nut & Bolt
SP12-18 (NB) 12V 18AH SLA Replacement Battery (2 Pack) for YardWorks Electric Lawn Mower
Keep your YardWorks electric lawn mower powered and ready with this SP12-18 (NB) 12V 18AH SLA battery 2-pack. Specifically engineered as a direct replacement for the original battery, this two-battery set provides a reliable, maintenance-free solution that meets or exceeds OEM specifications. Ideal for homeowners who want uninterrupted mowing sessions and a backup ready to go, this high-performance battery pack delivers consistent power and extended lifespan.
Key Specifications
- Model: SP12-18 (NB)
- Compatibility: Replacement for YardWorks Electric Lawn Mower (exact fit)
- Voltage: 12 Volts
- Capacity: 18 AH
- Terminal Type: Nut & Bolt
- Design: SLA (Sealed Absorbent Glass Mat), maintenance-free
- Pack Size: 2-Pack (two batteries included)
- Features: OEM compatibility, spill-proof, extended lifespan
Benefits
This 2-pack of replacement batteries offers exceptional value and convenience — one battery powers your mower today while the second stands ready as a backup. As a high-performance battery built with SLA technology, it is maintenance-free, spill-proof, and constructed to deliver consistent voltage and dependable starting each season. The SP12-18 (NB) is tailored to match original equipment specifications for a seamless fit and reliable operation.
Durability: Rugged construction and SLA design provide resistance to vibration and help protect against leaks and spills, making these batteries well-suited for yard work environments. Long Life: High-quality materials and proper charging routines contribute to an extended service life, ensuring both batteries in the pack remain ready for multiple mowing cycles. High Performance: Engineered to meet OEM voltage and capacity requirements, the SP12-18 (NB) offers steady power output for starting, blade operation, and any electric accessories.
Typical applications include YardWorks electric lawn mowers that require the SP12-18 (NB) battery, plus other small electric garden equipment that accepts an 18AH SLA battery with nut-and-bolt terminals. The 2-pack format ensures you have continuous coverage during busy mowing seasons or while one battery charges.
Ensure uninterrupted mowing with this SP12-18 (NB) 12V 18AH SLA replacement battery 2-pack. Buy now to secure reliable, long-lasting battery performance and a convenient backup for your YardWorks mower.
-
Voltage
-
Amp Hours
-
Terminal Type
-
Length (in.)
-
Width (in.)
-
Height (in.)
-
Weight (lb.)
-
Warranty
-
Type
-
Manufacturer
-
Brand Replacement
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.