Himaxbatt 12V 80Ah Lifepo4 Starter Battery Front View

Himaxbatt 12.8V 80Ah 1024Wh Lifepo4 Starter Battery Iso

Himaxbatt 12.8V 80Ah Lithium Starter Battery Back View

Himaxbatt 12.8V 80Ah 750Cca Lithium Car Start Battery Angle

Himaxbatt 12V 80Ah Lifepo4 Cranking Battery Brass Terminals

HiMAXBATT 12.8V 80Ah 750CCA LiFePO4 Lithium Automotive Starter Battery

Ultra-Lightweight Group 94R Drop-In Replacement for OEM Car Batteries with High-Peak BMS & Cold-Start Performance

Nominal Voltage
12.8V

Nominal Capacity
80Ah

Energy
1024Wh

750A Cold Cranking Power: Delivers instant 750CCA pulse ignition down to -20°C, eliminating cold-weather car starting failures.
Group 94R Drop-In Fit: Direct OEM replacement in 318x175x190mm dimensions at only 9.5kg, saving 60% vehicle weight.
Heavy-Duty 4S BMS: Features 750A peak discharge protection and rugged IP67 ABS casing.

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Description
Specifications
FAQs
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Instant Car Engine Start. 60% Less Weight.

HiMAXBATT 12.8V 80Ah LiFePO4 Car Starter Battery — Delivering 750CCA Cold Start Power with 4000+ Cycle Long-Term Reliability.

⚡ Engineered for Automotive High-Peak Ignition & Extreme Cold-Weather Resilience English Content:

When starting gasoline or diesel engines, vehicle electrical systems demand intense transient discharge currents within milliseconds. Traditional lead-acid and AGM batteries suffer from heavy voltage drops under cold ambient conditions, leading to slow engine cranks or ignition failures. Built upon premium 4S LiFePO4 cell chemistry, the HiMAXBATT 12.8V 80Ah car starter battery maintains an ultra-low internal resistance of ≤10 mΩ, preventing sudden voltage sags during initial starter motor engagement. By delivering a robust 750CCA cold cranking capacity and supporting up to 750A peak discharge for 3–5 seconds, this battery ensures crisp, immediate engine turnover down to -20°C (-4°F). Unlike lead-based starter batteries that experience rapid plate degradation under dynamic thermal stress, our electrochemically stable platform delivers consistent cranking power across operating temperatures spanning -20°C to 60°C.

🛡️ Ruggedized Group 94R Car Fitment & Integrated Alternator-Compatible BMS Protection

Designed to withstand continuous engine vibration and thermal cycles in vehicle compartments, the HiMAXBATT 12.8V 80Ah battery features standard SAE automotive brass posts (POS φ19mm / NEG φ17mm) housed in an IP67-rated flame-retardant ABS enclosure. Built to exact 318 x 175 x 190 mm dimensions (Group 94R / DIN H7 specification), it drops seamlessly into standard vehicle battery trays while reducing battery mass by over 60% down to just 9.5 kg—improving overall vehicle handling and fuel efficiency. The integrated Automotive-Grade Smart BMS manages continuous 100A charging from the vehicle alternator, offering precise protection against overcharge (14.6V cut-off), deep discharge (10.0V cut-off), engine bay overheating (75°C cut-off), and ultra-fast short-circuit response (200–600 µs). Manufactured in strict alignment with ISO9001 quality standards and tested under UN38.3 transport protocols, every battery complies with CE, RoHS, and IEC vehicle component safety benchmarks to deliver total peace of mind for automotive professionals.

Specifications

12.8V 80Ah 750CCA LiFePO4 Lithium Automotive Starter Battery Pack

Brand Name

HiMAXBATT

Model & Chemistry

12.8V 80Ah LiFePO4 Automotive

Nominal Voltage

12.8 V

Nominal Capacity

80 Ah (1024 Wh)

Internal Resistance

≤10 mΩ (@50% SOC)

Cold Cranking Amps (CCA)

750 A (@ -20°C / -4°F)

Peak Discharge Current

750 A (3–5 Seconds)

Max Continuous Discharge Current

100 A

BMS Discharge Cut-off

10.0 V (2.5 V/Cell ±0.1V)

Recommended Low Voltage Cut

11.0 V

Recommended Charge Voltage

14.6 V

BMS Charge Cut-off

14.6 V (3.65 V/Cell ±0.025V)

Recommended Charge Current

16 A (0.2C rate)

Maximum Charge Current

100 A (1.25C rate)

Self-Discharge Rate

<3% per Month (@25°C)

Short Circuit Protection Delay

200–600 µs

Dimensions L x W x H

318 x 175 x 190 mm

Net Weight

9.5 kg (20.94 lbs)

Terminal Post Type & Size

SAE Automotive Brass Post

Frequently Asked Questions

Upgrading your car’s conventional starter battery to high-performance LiFePO4 technology requires understanding cold-cranking performance, alternator compatibility, and vehicle safety thresholds. Below, our automotive power engineers answer key technical questions from vehicle operators and auto parts buyers regarding the HiMAXBATT 12.8V 80Ah car starter battery.

Can I replace my OEM car lead-acid or AGM starter battery directly with the HiMAXBATT 12.8V 80Ah battery?

Yes. The enclosure dimensions (318 x 175 x 190 mm) match standard DIN H7 / BCI Group 94R vehicle battery tray sizes, and the solid SAE brass posts (POS 19mm / NEG 17mm) connect directly to factory car battery terminals without modification. The 12.8V nominal voltage is completely native to standard 12V automotive electrical architectures.

How does this LiFePO4 car battery ensure fast cold-weather engine starts down to -20°C?

Thanks to high-rate LiFePO4 cells with an internal resistance of ≤10 mΩ, the battery eliminates the severe voltage drop common in lead-acid batteries at sub-zero temperatures. At -20°C (-4°F), it sustains a high 750A pulse discharge for 3–5 seconds, supplying instant cranking power to start gasoline and diesel engines.

Will my vehicle's alternator charge this battery properly without tripping the BMS protection?

Yes. Modern automotive alternators output a regulated charging voltage between 13.8V and 14.4V, which falls safely within the battery’s charging envelope. The BMS supports up to 100A continuous charge current with overcharge shutdown set at 14.6V (3.65V/cell), making it fully compatible with vehicle charging systems.

What safety features prevent battery failure in the event of an engine bay short circuit or over-discharge?

The integrated BMS includes hardware short-circuit isolation with a 200–600 µs response time to safeguard vehicle wiring. It also cuts off discharge at 10.0V (recommended low voltage disconnect at 11.0V) and incorporates a 75°C (167°F) high-temperature cutoff to protect against engine heat soak.

What are the primary vehicle performance benefits of reducing battery weight from ~24kg down to 9.5kg?

Dropping over 14kg (60%+) from the engine bay reduces front-axle weight bias, which enhances steering response, reduces suspension wear, and improves overall vehicle fuel economy. It also simplifies manual battery replacement in tight engine compartments.