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Item #:
39904022
LiFePO4 12.8-Volt 35Ah Lithium Iron Phosphate Battery *NEW IMPROVED BMS*
98% of respondents would recommend this to a friend
Item #:
39904022
GBP 260
Price Details
Price
GBP 260
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If Item price + shipping is below GBP 135, 20% VAT will be calculated on checkout, if it is equal or above GBP 135, no VAT will be charged. )
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Order now and get it around Friday, September 04
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LiFePO4 batteries represent an advancement in safety with advanced battery management systems ensuring safe and efficient operation.
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What Stands Out
High Safety Standard
This battery utilizes Lithium Iron Phosphate technology, ensuring superior thermal stability and safety compared to traditional lithium batteries, reducing risks of overheating or fire.
Extended Lifespan
Offering up to 2000 charge cycles, this battery significantly outlasts conventional batteries, providing long-term value and reduced replacement costs for users over time.
Enhanced BMS Protection
The newly improved Battery Management System (BMS) optimizes performance by preventing overcharging and deep discharging, enhancing battery efficiency and lifespan while ensuring reliable power supply.
Product Details
| Country of Origin | United States |
| Type | Drop In |
| Battery Size | 12 V |
| Brand | Austin Tech Energy |
| Manufacturer Warranty | 2 years |
| Application | High Drain Devices, Low Drain Devices, Solar/Wind Devices |
| Amp Hours | 35 Ah |
| Chemical Composition | Lithium Iron Phosphate (LiFePO4) |
| Voltage | 12.8 V |
| Item Weight | 24 lbs (10.89 kg) |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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RV Enthusiasts
Ideal for RV users seeking efficient, long-lasting power solutions for appliances and extended travel without frequent charging.
-
Solar Power Systems
Perfect for solar setups needing reliable energy storage with excellent charge-discharge cycles and minimal maintenance.
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Electric Vehicles
Great for electric vehicle applications where lightweight, high-capacity batteries are necessary for optimal performance and range.
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Budget Shoppers
Not ideal for those on a tight budget as lithium batteries tend to have a higher upfront cost than lead-acid.
Product Description
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Customer Questions & Answers
-
Question:
What are LiFePO4 batteries?
Answer: LiFePO4 batteries are Lithium Iron Phosphate batteries that offer advanced safety and longer lifespan compared to traditional lead-acid batteries. -
Question:
What safety features do these batteries have?
Answer: They include protections against under and over voltage, over discharge, over current, over temperature, and short circuits. -
Question:
Can I use LiFePO4 batteries in place of lead-acid batteries?
Answer: Yes, they are specifically designed as drop-in replacements for standard BDI Group Size lead-acid batteries.
austin tech energy Editorial Review
The LiFePO4 12.8-Volt 35Ah Lithium Iron Phosphate Battery features advanced technology with a new improved BMS, ensuring safety and efficiency for your high drain and renewable energy applications. With a robust capacity of 35 Ah, this battery is designed to power both high and low drain devices effectively. Manufactured in the United States, it provides reliability and meets the demands of various applications, including solar and wind devices. Weighing 24 lbs, it remains a practical choice for both mobility and performance. This battery also comes with a 2-year manufacturer warranty, reflecting the confidence in its durable design.
Customer Reviews & Ratings
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Pros
- High capacity for various applications
- Lightweight design at 24 lbs
- Ideal for solar and wind devices
- Long-lasting lithium iron phosphate technology
- Enhanced safety features with new BMS
Cons
- Might be heavier compared to smaller batteries
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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Important information
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GBP 260
Excluding VAT : VAT will be calculated on the checkout page
Order now and get it around Friday, September 04
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Drop-in replacement for standard BDI Group Size lead-acid batteries.
- Advanced safety features including over voltage and over discharge protections.
- High efficiency for improved energy usage.
- Longer lifespan compared to traditional lead-acid batteries.
- Lightweight design for easier installation and transport.
- Ideal for various applications needing reliable power.
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