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Lithium LiFePO4 Car Battery Auto Battery, 12V 40Ah, 660CCA, 100RC Deep Cycle Start and Stop Car Batteries, IP66 Waterproof, H5 H6 H7 Automobile Replacement Battery for Cars, Trucks

  • Based on 3 reviews
Condition: New
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Availability: 17 left in stock
Fulfilled by CLWGOOD

Arrives Thursday, Sep 18
Order within 19 hours and 44 minutes
Available payment plans shown during checkout

Features

  • Compact Size&Strong PowerOur 12V 40Ah start-stop car battery measures 9.5x6.9x8in and weighs 14.8 pounds. IP66 waterproof ensures you to use lithium batteries anywhere safely. This car battery originally had threaded terminals. For compatibility with more vehicle models, we've added M8 screws to the battery pack. You can install an M8 screw on the negative terminal. The screw height is 30mm(1.18in)when installed, it will increase the total battery height to 9.18in. Please verify this dimension fits your vehicle.
  • Good Replacement for Lead-acid BatteryThe lithium car battery is the good replacement to lead-acid batteries. It has a longer service life, deeper cycle times, higher energy density and is maintenance-free. This auto battery is equipped with a BMS protection, which can better protect automotive battery to prevent over charge, over discharge, over load, over voltage, over current, over heating and short circuit,ensure the health of the battery.
  • Excellent Performance of LiFePO4 Automotive BatteryThe 12V 40Ah automotive replacement batteries feature 100RC and 660CCA performance, ensuring immediate ignition even in extreme temperatures. Charge:32F-113F(0C-45C) Discharge: -40F-140F(-20C-60C) Storage: 32F-113F(0C-45C). Our car batteries are equipped with a battery heating process. When the temperature is extremely low, the BMS will warm up the battery to ensure its discharge performance at low temperatures and extend its service life.
  • NO Heavy Metals&Strong StabilityOur auto battery products do not contain any lead, chromium heavy metals, it has higher energy efficiency, longer service life and also reduce CO2 emissions. This is very helpful for the improvement of the environment.
  • Emergency Battery Restartlf the battery is fully drained and won't turn on, you can press the white button to force-activate it in emergencies.
  • Professional After-sales ServiceWe are professional lithium battery manufacturer, we have a large R&D department and after-sales service team, if you have any questions, we can provide you with technical support and rapid response of after-sales service.

Brand: ECIENWELL


Vehicle Service Type: Passenger Car


Size: 12V 40Ah


Automotive Fit Type: Universal Fit


Manufacturer: ECIENWELL


Manufacturer: ‎ECIENWELL


Brand: ‎ECIENWELL


Model: ‎A1240


Item model number: ‎ECW-A1240


Manufacturer Part Number: ‎A1240


Date First Available: June 11, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Very good
Using this battery for a period of time, it works good.
Reviewed in the United States on June 18, 2025 by Danny shaw

  • Meet all battery specifications
The capacity of the battery does indeed meet the advertised rated capacity.
Reviewed in the United States on June 18, 2025 by Marcus dahle

  • Great buy
Amazing product, very cool.
Reviewed in the United States on June 18, 2025 by James hermenegildo

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