The best lightweight lithium car battery depends on your vehicle’s required group size, cranking power, and battery-management needs. The Group 47 H5 options below include models rated at 600 or 800 CCA, while the Group 48 listing may suit buyers whose vehicle calls for that size. Compare the specifications before choosing: lithium batteries are not automatic replacements for every lead-acid battery.
| Product | Best Suited For | Key Listed Detail |
|---|---|---|
| Group 47 H5 800CCA | Buyers prioritizing stated cranking output | 800 CCA; listed weight of 20 lb |
| Lipower Group 48 | Vehicles requiring Group 48 | Solid-state start-stop battery by name |
| Group 47 H5 600CCA | Buyers seeking a 600 CCA H5 option | 12V, LiFePO4, 600 CCA |
| Forgetyo Group 47 800CCA | Buyers who want listed BMS protections | 12.78 lb; 800 CCA |
| TPE Group 47 600A | Weight-conscious H5 shoppers | 11.02 lb; 600A listed |
Group 47 H5 800CCA LiFePO4 Battery
This Group 47 H5 battery is best for buyers who need a listed 800 CCA rating and want a lithium option described for start-stop use. Its product details identify LiFePO4 cells, a 12V configuration, and a weight of 20 pounds. The listing also claims cold-weather starting down to -30°C and thousands of cycles, but buyers should confirm that performance against their vehicle and climate needs.
Choose this if the vehicle calls for Group 47/H5 and 800 CCA is suitable. The stated 20-pound weight may appeal to shoppers looking to reduce battery mass compared with their current unit. Avoid choosing on CCA alone: the supplied details do not provide battery dimensions or terminal layout, so verify those before purchase.
Lipower Group 48 Solid-State Battery
This is the relevant pick for a buyer whose vehicle specifies a Group 48 battery. The product name describes it as a solid-state start-stop battery, distinguishing it by stated battery type and intended application. However, no detailed product features were supplied here, so its CCA, dimensions, weight, voltage, and protection features cannot be compared with the other options from the available information.
Choose this only after confirming the complete specifications with the product listing and matching them to the vehicle manual or existing battery. Its main advantage in this comparison is the Group 48 designation. The limitation is the lack of provided technical details, so do not assume a particular weight or starting rating.
Group 47 H5 600CCA LiFePO4 Battery
This 12V Group 47 H5 LiFePO4 battery is best for buyers whose vehicle requires H5 sizing and whose application calls for 600 CCA. Its name identifies it as a lightweight automotive start-stop battery. The supplied information does not give a weight, dimensions, or additional protection details, so it is harder to assess fit and weight savings than the other Group 47 choices.
Choose this if the 600 CCA rating and group size match the vehicle’s requirements. Avoid relying on the “lightweight” label alone when comparing total battery weight; confirm the current product specifications and physical measurements before ordering.
Forgetyo Group 47 800CCA Lithium Battery
This Group 47 battery is best for buyers seeking a stated 800 CCA rating alongside a listed battery-management system. Its specifications give a 12.8V output, dimensions of 9.4 by 6.9 by 7.5 inches, and a weight of 12.78 pounds. The product details list high- and low-temperature, over-discharge, overcharge, and short-circuit protections.
Choose this if those dimensions and terminal arrangement fit the vehicle and its required cranking output. Its listed weight is lower than the 20-pound Group 47 option above, although the products’ specifications should be checked directly before comparing. The listing advises checking battery size before purchase; it does not establish compatibility with every Group 47 vehicle.
TPE Group 47 600A Lightweight Battery
This TPE battery is best for weight-conscious buyers comparing Group 47 options. The listed weight is 11.02 pounds, with dimensions of 9.60 by 6.92 by 7.75 inches, 12.8V voltage, and 600A cold-cranking amperage. Its product details describe LiFePO4 chemistry, a BMS control circuit, and support for start-stop functions and vehicle electronics with high power demands.
Choose this if the listed dimensions, polarity, and 600A rating suit the vehicle. The listing gives polarity as negative-positive and advises measuring the existing battery. It also mentions practical testing up to 700 CCA, but that should not replace the stated 600A specification when checking vehicle requirements.
Buying Guide: How To Choose A Lightweight Lithium Car Battery
Which group size does your vehicle require?
Start with the owner’s manual or the label on the installed battery. Group 47/H5 and Group 48 are different size designations; a battery’s chemistry or CCA rating does not make it a physical fit. Compare length, width, height, terminal location, and polarity with the battery tray and cable arrangement.
How much cranking power is enough?
Use the vehicle manufacturer’s CCA requirement as your baseline. The products here list ratings of 600 or 800 CCA, but a higher number alone does not guarantee compatibility. Consider local winter conditions and follow the vehicle’s specified minimum. Check the product’s current listing for the exact rating and test conditions.
What does a battery management system do?
A BMS monitors and manages battery operation. The Forgetyo and TPE descriptions specifically mention BMS features, while their listed protection details differ. Do not assume every lithium battery includes the same safeguards; check the product specifications for temperature, charge, and discharge protections.
Does a lithium battery work in every start-stop vehicle?
No. Confirm the battery chemistry and charging-system requirements are suitable for the specific vehicle. Start-stop use is stated for several products, but that claim is not proof of universal fit. Consult the vehicle manual or a qualified battery professional when the manufacturer’s requirements are unclear.
Frequently Asked Questions
Is a lithium car battery lighter than a lead-acid battery?
These listings describe their batteries as lightweight, and some provide specific weights. Compare the listed weight with the battery currently installed; weight savings vary by model and cannot be assumed without both measurements.
Can I replace my Group 47 battery with a Group 48 model?
Do not assume so. Check the vehicle’s required group size, battery dimensions, terminal arrangement, and electrical requirements before selecting a different size.
Is 600 CCA enough for a car?
It is enough only if it meets the vehicle manufacturer’s requirement and is appropriate for the operating climate. Confirm the required CCA in the owner’s manual or vehicle specifications.
What should I verify before buying a lithium starting battery?
Check group size, dimensions, polarity, CCA, voltage, start-stop suitability, and charging-system requirements. Also review the listed BMS protections and confirm the current product specifications.