Limitless RP30-30AH Retro Pro 30 Underhood Lithium Car Audio Battery with Maintainer - 6,000 - 8,000 Watts Rms | 30Ah

Limitless RP30-30AH Retro Pro 30 Underhood Lithium Car Audio Battery with Maintainer - 6,000 - 8,000 Watts Rms | 30Ah

Regular price $759.00
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Includes Retro Pro 30 Lithium Battery and 3.5A Battery Charger/Maintainer

Limitless Lithium’s Retro Pro 30 Lithium Battery offers cutting-edge energy storage solutions for a diverse range of applications. Engineered with advanced lithium-ion technology, the Retro Pro 30 high-performance battery delivers unparalleled power and endurance.

Whether you’re powering marine equipment , or a big audio systems, the Retro Pro 30 ensures reliable performance and extended lifespan. Its compact design and lightweight construction make installation effortless, while its robust build guarantees durability in the most demanding environments.

Trust Limitless Lithium to revolutionize your energy needs with the Retro Pro 30 Lithium Battery, setting new standards in efficiency and reliability.


  • Voltage: 12V
  • Resting Voltage Range: 13.1V-13.4V
  • Capacity (Amp Hours): 30AH (Not Pb Eq) 110-140 Pb Eq
  • Chemistry: LifePo4
  • Operating Temperature Range: -20-60℃/-4℉-140℉
  • BCI Group Case: Group 30L
  • Terminal Size: M6x100
  • Terminal Orientation: Positive Right
  • Life Cycles: 2,000 @ 80% DOD
  • Battery Management System (BMS): No
  • Balance Board: Yes (Internal)
  • Max Charge Voltage: 14.8V
  • Max Charge voltage BMS Cutoff: NA
  • Minimum Discharge Voltage BMS cutoff: NA
  • Max Input Charge Current: 250A - 300A *Charging higher than this can reduce cycle life
  • Continuous Discharge Current: 400A
  • Max Discharge Current (Burst amperage): 800A (Temperature dependent)
  • Continuous Wattage Range (Alt. size dependent): 6000-8000W (100A-250A Alt)
  • Burst Wattage Range (Atl. Size dependent): 10,000


  • Height 5”
  • Depth 6.88”
  • Wide 6.49”
  • Weight: 9.9 pounds
  • BCI Group Case: Group 30L

Charger / Maintainer Features:

  • Shuts completely off when the battery is charged (0.0 Amps output)
  • Will turn back on if batteries get drained down to 13.0V due to a current draw
  • Can be used as a "Maintainer" for all lifepo4 batteries.

Shipping Policy

DBs Car Audio is proud to offer fast & free shipping on all items listed in our store!!

Shipping Methods and Transit Times

DBs Car Audio ships orders from our Kissimmee, Florida location. On occasion, orders will be fulfilled directly by the manufacturer or distributor in order to reduce the shipping time..

Order Tracking

Once an order has been shipped, we send our customers an email with the tracking number for the order. Click on the tracking link in the email to follow the location of the package on the carrier's website. If you did not receive a tracking number by email or need to confirm the tracking information, please contact call us at 1-800-927-9390

Signature Required

Due to the valuable contents of some shipments, DBs Car Audio will only require a signature upon delivery if the order is over $500. Such guidelines will not be overruled upon the customer's request. Please understand that this is a security measure taken by our Company to ensure the safe delivery of each package and guarantee excellent service. Many of our third-party shipping carriers and payment companies require signatures upon delivery to protect against fraud and theft. Customers may request a signature upon delivery by emailing us at

Shipping Policy Disclaimer

Delivery estimates do not apply to items shipped directly from the manufacturer, nor out-of-stock items. Some items that ship from the manufacturer can only be delivered to addresses within the 48 continental states.

Standard delivery time for domestic customers will average from 2-4 business days, but can take longer in some cases. Saturday, Sunday and national holidays are not considered business days for delivery purposes.

Our Shipping Guarantee applies only to shipments delayed due to our service failure. We will not guarantee shipments that are delayed due to an act of god (ex: weather), a catastrophic event, or failure by our delivery partners. Our guarantee is also voided if incorrect billing or shipping information is given and results in your order being delayed to its destination. Our guarantee is also void if no one is available to sign for shipment when delivery attempt is made if a signature is required.

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