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Precision Battery  |  SKU: BW-18141

Precision HJT9B-FP Lithium-Ion High-Performance Replacement Battery for SigmasTek ST7B-BS, 12V

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

➤ Compatible replacement for multiple lead-acid battery models including YT9B-4 and GT9B-BS

➤ Up to 65% lighter than traditional lead-acid batteries for easier handling and installation

➤ Fast recharge capability with a 6-minute quick recharge time for minimal downtime

➤ Long-lasting performance with over 2000 charge cycles compared to 350 in lead-acid batteries

➤ Spill-proof design allows mounting in any direction with no acid leaks or pollution concerns


📦🚀 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 — Replacement for SigmasTek ST7B-BS (12 Volts)

The Precision HJT9B-FP Lithium Ion battery is a direct-fit replacement option for SigmasTek ST7B-BS and other similar lead-acid models. Designed for riders and technicians seeking a lightweight, maintenance-free upgrade, this Precision battery delivers quick recharge capability, long cycle life, and spill-proof convenience—making it an excellent high-performance battery choice for a variety of small vehicle and accessory applications.

Key Specifications

  • Model: Precision HJT9B-FP
  • Replacement for: 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
  • Replacement reference: SigmasTek ST7B-BS
  • Chemistry: Lithium Ion
  • Voltage: 12 Volts
  • Capacity: 8 AH
  • Brand: Precision Battery
  • Terminal type: Nut & Bolt
  • Weight/size advantage: Up to 65% lighter than lead-acid
  • Fast recharge capability: 6-Minutes fast recharge time (as stated)
  • Cycle life: 2000+ extreme cycle life compared to 350 for lead-acid
  • Design features: No spill, mounts in any direction, built-in capacity indicator
  • Environmental: Contains no acid or heavy metals (lead, cadmium, mercury)
  • Charging compatibility warning: Some lead-acid chargers are compatible with limitations (max 14.9V; avoid desulfation or chargers without automatic shutoff)

Benefits

This Precision HJT9B-FP replacement battery delivers exceptional longevity, offering thousands of cycles compared to conventional lead-acid batteries. Its spill-proof lithium design removes acid-handling concerns and allows mounting in virtually any orientation—ideal for tight or custom installations. As a high-performance battery, it provides strong cranking power and dependable reserve capacity for repeated starts, while the built-in capacity indicator makes on-the-spot charge checks easy.

Beyond motorcycles and scooters, this battery is well-suited for powersports, small vehicles, emergency backup systems, and portable tool applications where weight, reliability, and ease-of-use matter. It is a great choice whenever you need a long-lasting battery that reduces weight without sacrificing starting performance or operational safety.

For users transitioning from lead-acid to lithium, the HJT9B-FP is an efficient, maintenance-free replacement battery with clear environmental advantages—no acid, no heavy metals, and a smaller footprint. Follow the charger compatibility guidance to ensure optimal charging performance.

Upgrade to the Precision HJT9B-FP replacement battery today—order now to enjoy the benefits of a high-performance, long-lasting battery with fast shipping on in-stock items.


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