Gravely 300 SERIES High Performance Lawn Mower 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
Gravely 300 SERIES Lawn Mower Replacement Battery — Compatible with Gravely 300 SERIES
This replacement battery is engineered to be fully compatible with the Gravely 300 SERIES lawn mower, offering robust reliability and dependable deep-cycle performance. The SP12-35 NB (12 V 35 AH) unit is factory fresh and built with Absorbent Glass Mat (AGM) technology for a maintenance-free, valve-regulated, spill-proof experience. For owners seeking a high-performance, long-lasting battery for their Gravely 300 SERIES, this replacement provides the consistent power and certified quality needed for regular use.
Key Specifications
- Compatible Model: Gravely 300 SERIES
- Battery Part: SP12-35 NB
- Voltage: 12 Volts
- Capacity: 35 AH (Amp-hours)
- Terminal Type: Nut & Bolt
- Technology: Absorbent Glass Mat (AGM)
- Usage Type: Designed for Deep Cycle Usage
- Construction: Valve Regulated Spill Proof
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Quantity Required: 1 battery
- Features: Power/Volume Ratio Yielding Unrivaled Energy Density
Benefits
- Durability: AGM and valve-regulated design reduce the risk of spills and offer enhanced vibration resistance ideal for lawn equipment.
- Long Life: Designed with deep-cycle operation in mind, this long-lasting battery sustains performance through frequent use and charging cycles.
- High Performance: Offers a favorable power-to-volume ratio for steady energy delivery during prolonged mowing or equipment operation — a reliable high-performance battery for the 300 SERIES.
- Quality & Safety: U.L. recognition and CE certification mean the battery meets established safety and quality standards.
- Typical Applications: While purpose-built for the Gravely 300 SERIES, this replacement battery is also suitable for similar deep-cycle applications such as backup power, UPS systems, and power tools that accept a 12 V 35 AH AGM battery.
- Installation Ease: Reuse your existing cables and hardware; nut & bolt terminals allow for secure attachment and straightforward installation.
- Warranty & Assurance: Supplied brand-new and backed by a 1 year warranty, giving you peace of mind with your purchase.
Ready to upgrade your power source? Purchase this replacement Gravely 300 SERIES battery now to ensure consistent, long-lasting performance. Order today and enjoy fast shipping on available stock.
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