STX20L-BS High Performance Replacement Battery for Yamaha Kodiak 400 YFM40FW (1996-2002)
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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
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🚚 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.
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Disclaimer
Disclaimer
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🔹 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 Kodiak 400 YFM40FW (1996-2002)
Bring dependable power back to your Yamaha Kodiak 400 YFM40FW (1996-2002) with this STX20L-BS replacement battery. Designed to meet or exceed OEM specifications, this maintenance-free unit delivers consistent starting performance and durability under demanding off-road conditions. The STX20L-BS provides a precise fit and hassle-free installation, making it an excellent choice for riders who demand reliability, longevity, and strong cold-start capability from their ATV battery.
Key Specifications
- Model: STX20L-BS
- Compatible Model: Yamaha Kodiak 400 YFM40FW (1996-2002)
- Voltage: 12V
- Capacity: 18Ah
- Brand: SigmasTek
- Dimensions: 6.89L x 3.43W x 6.10H (inches)
- Maintenance: Maintenance-free
- Design Features: Durable construction for off-road conditions
Benefits
- Durability: Built to withstand the stresses of off-road riding — rugged construction ensures resistance to shocks, vibration, and extreme riding conditions.
- Long Life: Maintenance-free technology reduces the need for regular service while delivering steady performance over many seasons, making it a reliable long-lasting battery option.
- High Performance: Provides the dependable cranking power needed for reliable starts in cold weather and after long storage periods, restoring dependable starting behavior to older machines.
- Reliable Fit: Designed as a direct replacement for the Kodiak 400 (1996-2002), guaranteeing the correct dimensions and terminal placement for easy installation and secure mounting.
- Typical Applications: Perfect for ATVs, powersports use, and auxiliary situations such as emergency power for small electronics, UPS modules for critical devices, and powering portable tools in remote job sites.
If you’re looking for a high-performance battery that provides a precise fit and reliable starting for your Yamaha Kodiak 400 YFM40FW (1996-2002), the STX20L-BS is an excellent choice. This long-lasting battery balances power and durability so you can focus on the ride instead of battery worries. Add it to your cart now and enjoy dependable starts season after season.
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