12V 18Ah Craftsman 90508011 High Performance 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 | 18 Ah
Terminal Type
Nut & Bolt
12V 18AH Replacement Battery for Craftsman Lawn Mower 90508011
Upgrade your Craftsman lawn mower 90508011 with this 12V 18AH replacement battery engineered to meet or exceed OEM specifications. This maintenance-free, sealed lead-acid battery delivers dependable starts, extended use between charges, and a perfect-fit design that simplifies installation. If you’re after a cost-effective, long-lasting battery that restores performance to your mower, this unit offers reliable power and peace of mind.
Key Specifications
- Model Compatibility: Direct replacement for Craftsman 90508011
- Voltage: 12 Volts
- Capacity: 18 AH
- Terminal Type: Nut & Bolt
- Design: Maintenance-free, sealed lead-acid (SLA)
- Fit: Perfect fit, guaranteed compatibility
Benefits
This replacement battery is a practical, high-performance battery choice for Craftsman owners who need reliable starting and consistent electrical power. The sealed lead-acid construction makes it maintenance-free and spill-resistant, simplifying ownership and reducing downtime. As a long-lasting battery solution, it withstands routine use and the vibrations associated with lawn mower operation.
Durability: Built to handle regular outdoor use, this battery provides the structural integrity to endure shocks and temperature variations. Long Life: The 18AH capacity supports sustained run times and repeated start cycles for typical mowing sessions. High Performance: Designed to match or exceed OEM specs, it ensures dependable ignition performance and steady power delivery for blade engagement and accessories.
Typical applications include Craftsman lawn mowers with the 90508011 battery requirement, other small-engine outdoor equipment that uses a similar SLA pack, and any scenario needing a compact, maintenance-free power source with nut-and-bolt terminals. The guaranteed perfect fit streamlines replacement, so you can be back mowing quickly.
Restore performance to your Craftsman 90508011 with this long-lasting replacement battery. Click to buy now and enjoy reliable starts and maintenance-free operation.
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