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HQST 12V 100Ah LiFePO4 Lithium Battery(2 Pack)

SKU: HBT12100LFP-S48x2
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$279.99 $979.99
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  • Charging stops automatically below 32°F (0°C) and resumes above 41°F (5°C); discharge cuts off below –4°F (–20°C) to prevent cold-weather damage.
  • Delivers 1280Wh usable capacity and 100A continuous current — 2–3× more powerful than equivalent lead-acid batteries.
  • Weighs just 22 lbs, roughly 1/5 the weight of a 12V 200Ah lead-acid battery, yet fits the standard Group 31 size (13.07" × 6.77" × 8.66") for drop-in replacement.
  • Features <3% monthly self-discharge at 77°F (vs. up to 30% for lead-acid), built with Grade A+ UL-tested cells for a 10-year lifespan and backed by a 10-year warranty.
  • Easily scalable up to 4S4P, supporting systems up to 20.48kWh .
  • Advanced BMS provides 20+ protections against over/under-voltage, over-current, short circuits, and extreme temperatures.
  • IP65-rated for dustproof and water-resistant outdoor reliability.
  • Ideal for RVs, trailers, trolling motors, boats, off-grid cabins, and home backup during winter storms or hurricane season.
  • Not for engine starting — for deep-cycle use only.
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Return & refund policy

Shipping, Returns & Refunds Policy

Shipping

  • Free standard ground shipping on orders $49.99+ (before tax).
  • Orders below $49.99 are charged a $5 flat shipping fee.
  • Free shipping applies within the contiguous United States only.
  • Oversized, heavy, or restricted items may be excluded (noted on product page).
  • Orders are processed within 1–3 business days (excluding weekends and holidays).
  • Estimated delivery time is 2–7 business days after shipment.
  • Orders may ship in multiple packages, each with its own tracking number.
  • A valid street address is required; some items cannot be delivered to PO Boxes.
  • Shipments cannot be rerouted once shipped.
  • Shipping to Alaska and Hawaii is available with surcharges.
  • International shipping availability varies by location; customers are responsible for customs clearance and duties.

Order Cancellation

  • Orders can be canceled within 4 hours of placement, before shipping begins.
  • Once shipped, cancellation or interception cannot be guaranteed.

Returns

  • Return requests must be submitted within 30 days of delivery.
  • Items must be unused, undamaged, unmodified, and returned in original packaging.
  • A Return Merchandise Authorization (RMA) is required before returning any item.
  • Modified products are not eligible for return.

Return Shipping Costs

  • HQST covers return shipping only if the product was damaged during shipping, defective, or an incorrect item was delivered.
  • For all other reasons, return shipping costs are the customer’s responsibility.

Refunds

  • Refunds are issued within 7–10 business days after inspection.
  • Refunds are processed to the original payment method.
  • Damage caused by improper installation or handling is not eligible for refund.

Replacements

  • Shipping or manufacturing damage must be reported within 30 days, with supporting photos.
  • Replacement items ship via standard shipping only and cannot be expedited.
  • Replacements can only be shipped to the original country of purchase.

Third-Party Purchases

  • Orders placed through third-party sellers are subject to the seller’s return policy.
  • HQST provides warranty replacements only for eligible third-party purchases.

Contact

For shipping, returns, refunds, or replacements, contact:
sales@myhqsolar.com

Description
Includes
Specs
Downloads
FAQ
Reviews

Backed by an industry-leading 10-year warranty and lifetime, the HQST 12 volt 100Ah LiFePO4 battery is the ideal replacement for traditional lead-acid batteries, offering exceptional durability. The optimized Battery Management System (BMS) combines low and high-temperature protection, enhancing charging and discharging safety significantly. It also supports connections of up to 4 batteries in parallel and 4 batteries in series, allowing for expansion to a home battery bank system by configuring up to 16 batteries in series and parallel, resulting in a powerful 20.48 kWh power capacity.
The HQST 12V lithium battery proves perfect for a range of applications including RVs, trolling motors, boats, off-grid cabins, and home backup power storage.

Low Temp Protection
20.48 kWh Power Expansion
Upgrade to Lithium
Stable Performance

Robust & Durable

IP65-rated for water and dust resistance, you can trust it to withstand rain or splashes without a worry. Ensures reliability in extreme conditions.

Extended Shelf Life

With a mere 2-3% monthly self-discharge rate (at 77℉/25℃), it significantly outlasts lead-acid batteries, which deplete up to 30% per month.

Enhanced Performance

Supports a wide range of charge and discharge temperatures for seamless usage experience anywhere, anytime.

No More Heavy Lifting

The HQST LiFePO4 battery packs more power in a lighter design. Say goodbye to heavy lifting; it's effortless to carry, install, and transport.

Rvs & Cabins
Boats & Marine
Golf Cart & Wheel Chair
Energy Storage & Backup

12V 100Ah Lithium Iron Phosphate (LiFePO4) Battery with Handheld Strap

x 1

M8 Bolts (A Pair)

x 1

HQST 12V 100Ah Deep Cycle Lithium Iron Phosphate (LiFePO4) Battery

Technical Specifications

Rated Capacity (77°F/25℃)
100Ah
Rated Voltage
12.8 V
Energy
1,280Wh
Cycle Life
4,000+ cycles at 70% DOD; 3,000+ cycles at 80% DOD
Self-discharge Rate (77°F/25℃)
2% ~ 3%/month
Max. Continuous Discharge Current
100A
Max. Charging Voltage
14.6V
Max Charging Current
Optimal: 20A; Maximum: 50A
Discharge Cut-off Voltage
Lower than 11.1V
Over-discharge Recovery Voltage
12.6V
Internal Resistance
≤10mΩ
Connection Method
In Series (up to 4);In Parallel (up to 4);In Parallel and Series (up to 16 batteries)
Charging Temperature Range
32℉~113℉/0℃~45℃
Discharging Temperature Range
14℉~140℉/-10℃~60℃
Low Temperature Protection
Charging: 23℉~41℉/0℃±5℃;Discharging: -13℉~5℉/-20℃±5℃
HighTemperature Protection
Charging: 140℉~158℉/65℃±5℃;Discharging: 158℉~176℉/75℃±5℃
Storage Temperature Range
-4℉~113℉/-20℃~45℃ (Store for 1-3 months);-4℉~68℉/-20℃~20℃ (Store for 1 year)
Recommended Operating Temperature
68℉~86℉/25 ± 5℃
Terminal Bolt Size
Tailor-made M8

Controller Setting (for reference)

System Voltage
12V (x N)*
Boost Charge Voltage
14.2V (x N)*
Over-discharge Recover Voltage
12.6V (x N)*
Over-discharge Voltage
11.1V (x N)*
(x N)* : When it comes to a 24V(N=2) or 48V(N=4) system, the voltage should multiply by the number of series batteries.

Weight & Dimension

Weight
22 lbs/10 kg
Dimension
13.07 x 8.66 x 6.77 in/332 x 220 x 172 mm (L x H x W) Compatible with the Group 31 battery case

Warranty

warranty
10-year material warranty

HBT12100LFP-S48-Manual

Download

How many life cycles does this LiFePO4 battery have?

This HQST Deep Cycle LiFePO4 Battery enables more than 3,000 charge/discharge cycles at 80% DOD (Depth of Discharge), and more than 4,000 cycles at 70% DOD.

Will the battery come with the terminals? And if not, what's the size of the connector terminals?

Yes, it comes with two M8 screw terminals.

Does this battery have low temp and high temp protection?

Yes, this battery has low temperature protection and high temperature protection. When the temp is below 23℉ or over 140℉, the battery will stop being charged to protect its lifespan. When the temp is below 5℉ or over 158℉, it will stop discharging.

Can I run these batteries in series and in parallel?

Yes. These HQST lithium batteries support series and parallel connection. Please note that you need to use identical batteries to connect.
For optimal performance, we kindly advise you to follow the requirements listed below to connect your batteries together:
1. Fully charge all ready-to-connect batteries.
2. All battery interconnect cables should be the same wire gauge (AWG) and length, and come from the same brand. Otherwise, the impedance will be inconsistent, resulting in unbalanced charge and discharge performance.
3. Connect your batteries one by one in series (up to 4 batteries) or in parallel (up to 4 batteries). Secure all cable connections between the cable lugs and terminals.

Does this battery have low voltage protection?

Yes, it does. When the discharge voltage is lower than 11.1V, the battery will shut off automatically.

How to properly store this battery?

To store your battery, keep it at least 30%-50% charged. We recommend that you charge the battery every 6 months when not in use to prevent overdischarge. When storing the battery for 1-3 months, you can place it in an environment with a temperature range of -4℉~113℉/-20℃~45℃; when storing it for 1 year, it is recommended to place it in an environment with a temperature range of -4℉~68℉/-20℃~20℃.

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