STX20L-BS High Performance Replacement Battery for Yamaha YFM400F Big Bear 400 4x4 (2000-2006)
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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
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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
STX20L-BS Battery — Replacement for Yamaha YFM400F Big Bear 400 4x4 (2000-2006)
Replace the aging battery in your Yamaha YFM400F Big Bear 400 4x4 (2000-2006) with the STX20L-BS replacement battery engineered for reliability, durability, and consistent starting performance. This high-performance battery meets or exceeds OEM specifications to deliver dependable cranking power and long-lasting battery life for hunting, farm work, and weekend trail riding. Its maintenance-free, spill-proof construction makes it a practical and safe choice for ATV owners.
Key Specifications
- Model: STX20L-BS
- Compatible Models: Yamaha YFM400F Big Bear 400 4x4 (2000-2006)
- Voltage: 12 Volts
- Capacity: 18 Ah
- Terminal Type: Nut & Bolt
- Brand: SigmasTek
- Meets or exceeds OEM specifications
- Maintenance-free technology
- Spill-proof and leak-proof design
- High CCA rating for reliable starting power
- Designed specifically for Big Bear 400 applications
Benefits
The STX20L-BS long-lasting battery is built for the demands of ATV ownership. Its sealed, spill-proof design reduces the risk of leaks and enables safe installation and operation in rugged conditions. Maintenance-free technology means no routine electrolyte checks, making ownership simpler and more convenient. These features combine to extend the service life of the battery and reduce the likelihood of unexpected failures.
As a high-performance battery, it provides consistent starting power—even in cold weather—thanks to its high CCA characteristics and OEM-grade construction. The exact-fit design ensures a straightforward replacement process, minimizing downtime so you can get back to work or play quickly. Typical applications include use as the primary starting battery for ATVs, backup power for emergency starts, and powering lights or small accessories used in fieldwork.
For ATV riders who demand dependable performance and long service life from their battery, the STX20L-BS replacement battery is a solid choice. It combines robust construction, excellent starting ability, and low-maintenance operation to keep your Big Bear ready for action.
Don’t wait until a dead battery stops your plans—order the STX20L-BS high-performance replacement battery for your Yamaha YFM400F Big Bear 400 4x4 now and enjoy reliable, long-lasting starts.
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