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Precision Battery  |  SKU: BW-17989

Precision HJT9B-FP Lithium-Ion Compatible Replacement Battery for SigmasTek ST9B-BS, 12V

Sale price $162.49 USD Regular price $222.48
Shipping calculated at checkout.

➤ Up to 65% lighter and smaller than traditional lead-acid batteries

➤ Fast recharge in just 6 minutes with high current capability

➤ Long-lasting with over 2000 charge cycles, outperforming lead-acid by 6x

➤ Spill-proof design allows mounting in any direction without leaks

➤ Built-in capacity indicator for easy battery status monitoring


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ 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.

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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

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: 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 | 8 AH

Terminal Type

Nut & Bolt

Precision HJT9B-FP Lithium Ion Battery — Compatible with YT9B-4, CT9B-4, GT9B-4 and more (Replacement for ST9B-BS)

The Precision HJT9B-FP Lithium Ion Battery is a compact, reliable replacement battery engineered for compatibility with a wide range of lead-acid models including YT9B-4(Gel), YT9B-4, YT9B-BS, HT9B-4(Gel), HT9B-4, HHT9B-BS, CT9B-4(Gel), CT9B-4, CT9B-BS, GT9B-4(Gel), GT9B-4 and GT9B-BS. Designed to deliver superior performance, this high-performance battery offers faster recharging, significantly reduced weight, and industry-leading cycle life. Whether you need a dependable replacement battery for daily starting, backup power, or portable applications, the HJT9B-FP provides consistent voltage and dependable operation you can trust.

Key Specifications

  • Model: Precision HJT9B-FP
  • Compatible with: YT9B-4(Gel), YT9B-4, YT9B-BS, HT9B-4(Gel), HT9B-4, HHT9B-BS, CT9B-4(Gel), CT9B-4, CT9B-BS, GT9B-4(Gel), GT9B-4, GT9B-BS
  • Voltage: 12 Volts
  • Capacity: 8 AH
  • Terminal Type: Nut & Bolt
  • Battery Chemistry: Lithium Ion
  • Fast Recharge Time: 6-Minutes Fast Recharge Time
  • Cycle Life: 2000+ Extreme Cycle Life (vs. ~350 Lead Acid)
  • Weight Reduction: Up to 65% lighter than lead-acid
  • Safety: No spill — mounts in any direction
  • Capacity Indicator: Built-in, easy-to-read battery capacity indicator
  • Environmental: Does not contain acid or heavy metals (Lead, Cadmium, Mercury)
  • Brand: Precision Battery
  • Replacement For: SigmasTek ST9B-BS

Benefits

  • Durability: Constructed with lithium-ion chemistry for exceptional mechanical resilience and resistance to vibration and shock, making it ideal for motorcycle, powersport, and portable equipment use.
  • Long Life: With an excellent cycle life of 2000+ cycles, this long-lasting battery dramatically outperforms traditional lead-acid options, reducing replacement frequency and lifecycle cost.
  • High Performance: Fast recharge capability allows rapid turnaround between uses; paired with stable voltage output, it acts as a high-performance battery for demanding starts and frequent usage cycles.
  • Safe & Clean: No acid, no leak risk, and the ability to mount in any orientation removes common safety concerns associated with lead-acid designs.
  • Convenient Monitoring: Integrated capacity indicator gives immediate visual status so you can assess remaining charge at a glance.
  • Typical Applications: Ideal as a reliable replacement battery for motorcycles, ATVs, scooters, and small vehicles; also excellent for UPS standby, emergency power packs, portable tools, and other high-rate discharge applications where consistent starting power and quick recharge are required.
  • Installation Support: Includes high-density foam spacers for secure fitment and is compatible with most lead-acid chargers that include a voltage limitation to 14.9V and an automatic shutoff.

If you’re ready for a lightweight, long-lasting battery upgrade, the Precision HJT9B-FP is a premium replacement battery choice that balances performance and reliability. Order now to upgrade your vehicle or equipment with this high-performance battery and enjoy faster recharge, superior cycle life, and worry-free operation.


Payment & Security

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