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HQST 12V 100Ah LiFePO4 Lithium Battery

SKU: HBT12100LFP-S48-G3-US

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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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Estimated delivery time: 2–5 business daysShipping Policy.
30-Day Returns & Refunds

Return & Refund Policy

Refund policy

  •  Thank you for shopping with HQST.
  •  Our goal is 100 percent customer satisfaction. But in the event something isn’t quite right, we've made the return process super easy.

Order Cancellation

Customers can cancel transactions any time before HQST begins the shipping process. The shipping process typically begins within 4 hours of placement of the order, so you can cancel the order yourself within 4 hours of placing it. If unable to cancel an order before shipping, please refuse the package if you know the tracking information, you can also contact the HQST Customer Service team for help (please note we cannot guarantee that an order can be successfully cancelled or a package intercepted if it has already been shipped).

Customers can make returns in accordance with HQST’s Return Policy.

HQST 30-Day Return Policy

For returns of products purchased online at hqsolarpower.com customers need to contact HQST customer service within 30 days of receiving the item to initiate the return process. To be eligible for return, items must be in the original packaging unused, undamaged, unmodified, and have a return authorization number provided by HQST. Proof of purchase must be provided by the customer to begin the return process.

Original packing: it should be the original container or covering which is used to package the product, including all accessories, attachments as well as manual, etc.

Return authorization number: customer needs to first contact HQST customer support team for getting the RMA number before returning the order.

Note: Upon receiving your package, we kindly advise keeping the original packaging handy for any potential future needs.

Shipping Costs of Return

Shipping costs for product returns will be paid by HQST under the following conditions:

  •  Product was damaged during shipping or warehouse handling
  •  Product defects
  •  Incorrect product was delivered

The customer is responsible for any return shipping costs when product is returned under any other conditions. Costs vary by shipping location.

HQST does NOT accept returns of items that have been modified in any way. Any modifications will render the HQST warranty null and void. Any modified products returned to HQST will be shipped back to the customer at the customer’s expense.

For approved returns, HQST will provide a prepaid return shipping label.

For returns due to customers' subjective reasons (such as no longer needing to change plans, etc.), within the allowed return window, the shipping cost for returns should NOT be borne by HQST.

Unauthorized returns may result in processing delays, additional fees, or other complications.

To ensure a smooth return process and protect your interests, please request a Return Merchandise Authorization (RMA) before returning any item.

Refunds

For returns related to customer preference (not related to defects, shipping damage, or incorrect items), the return shipping cost will not be covered by HQST. After receiving the returned item, HQST will issue a refund within 7 ~ 10 business days. HQST will notify the customer by email once the refund has been processed. The refund will be processed through your original payment method. It may take some time before your refund is posted on your bank account or credit card statement. If you haven't received a refund within this period, please first check your credit card transaction or bank account again. If the refund isn’t received after 7-10 business days, please contact the HQST Customer Support Team. All returned items will be inspected to ensure they meet HQST’s return policy.

If damage results due to improper handling during the setup or installation, whether it is done professionally or by the customer, the product is no longer eligible for replacement or refund.

If your payment card uses a currency other than USD, the refunded amount may differ from your original order amount due to exchange rate fluctuations. This difference is determined solely by your card issuer and is beyond HQST's control.

To fully resolve this issue, we need your cooperation with the troubleshooting steps. If we are unable to proceed, our refund will be limited to 50% of this product.

Product Return Process

To request authorization for return, contact HQST customer service. Once customers have contacted HQST they will be asked to provide the reason for the return, and a receipt or proof of purchase.

The HQST Customer Service Team will determine whether the purchase is eligible for return. After confirming the order is eligible, HQST will issue a Return Material Authorization (RMA) number and a prepaid return shipping label. The customer must clearly mark the RMA number on the package and include the dated proof of purchase with the product.

For returns made within the 30-day right of withdraw period and returns requested after 30 days of receipt that are unrelated to product defects (such as no longer needing to change plans, etc.), within 14 days after getting RMA, customers should ship out the product to HQST.

For products being returned due to quality issues, which are beyond 30 days’ return period but within warranty period, HQST will provide instructions on how to properly package the product to return it safely. Do not ship the product before receiving the proper shipping safety instructions.

Note: Do not return any items without the RMA confirmation from the HQST Customer Support Team. For returns without RMA confirmation, the refund or replacement will not be processed, and the items will be returned to the sender.

The warehouse does not accept personal drop-offs. Unauthorized returns without prior approval may lead to processing delays, additional charges, or other complications. To protect your rights, please follow the standard return procedure.

Replacement

Damage issue: Within 30 days of placing an order, please provide photos of the damaged product, the packaging, and the shipping label. Once the issue is confirmed by HQST Customer Service, HQST will prioritize a replacement. For assistance, please contact our customer service team or email us at sales@myhqsolar.com. If damage results due to improper handling during the setup or installation, whether it is done professionally or by the customer, the product is no longer eligible for replacement.

Quality Issue: If you encounter a product defect within the warranty period, please email the following information to our support team at sales@myhqsolar.com:

  •  Multimeter readings (if applicable)
  •  Your invoice, or the following details: Order number, Proof of purchase
  •  Clear photos of: the damaged or defective product, the product’s outer packaging

 (including overall condition and any damage), the shipping label (showing sender/recipient details and tracking number)

  •  Mailing address
  •  Contact telephone number

Once reviewed and confirmed by the HQST customer service team, HQST will prioritize your replacement request.

Please note that replacement products can only be sent to the original order's country of purchase, as cross-border reshipping is not currently available.

This policy applies only to HQST products purchased through hqsolarpower.com.

FOR THIRD-PARTY PURCHASE

Thank you for purchasing HQST product from one of our approved third-party vendors. Returns and refunds for purchases made through these third-parties (Walmart, Home Depot, Best Buy, Amazon LLC, etc.) must be handled through the vendor's return policy. HQST cannot assist in third-party returns and refunds. HQST can only offer replacements for products still within the warranty period.

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Description
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FAQ
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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
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

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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