ROCK Battery COMBO 16 2 POST Volt Battery and Charger COMBO SPECIAL

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  Includes our best seller! The 16/12 Volt genuine ROCK Racing Battery and the 16 Volt/12 Volt Battery Charger with all cables included!

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  • Shipping info

    We deliver worldwide and to almost all countries. Call us at 704-871-0721 to get help with large international orders and we can help manually check the shipping for you. MORE INFO BELOW in Shipping Info section.

  • Payment methods

    Accepted payment methods

  • Return Policy

    We accept returns for up to 30 days from the purchase date. To be eligible for a return, your item must be unused and in the same condition that you received it. More Return Info below. 

ROCK 16 Volt Battery (2 POST) and the Rock Battery Charger Combo

Includes our 2-post 16 volt Only and our 12/16 Rock Charger,  Battery 6.6” deep x 10.2” wide x 8.3” high 

2-post 16 volt and our 12/16 Volt Rock Charger.

Both made in America

The Rock 16 volt Battery Charger. Charges and maintains all The Rock 12-volt and 16-volt batteries. Charger can be used on other manufactured batteries including Gel Cell, Lead Acid or Wet-Deep Cycle.

The Rock Battery Charger Recharges our batteries in less than 15 minutes with average voltage usage under racing conditions. Solid state LED indicators show the current flow and reads READY when charged.

Our battery Maintainer and Charger allow you to run your water pump and electric fans at the track without draining your battery. The 55 amp output regulates voltage flow to prevent overcharging. Ideal for maintaining peak voltage at the track as well as recharging your battery between events.



The RC12V Battery Charger has 3 basic programmable modes for charging batteries. In addition this charger is capable of doing so at two separate voltage levels for 12 and 16 volt batteries. This charger can be set to charge batteries for a period of time in each mode or do so automatically.

 Turbo Mode for charging AGM and High Performance batteries

Regular Mode for charging Flooded Lead Acid Batteries

Soak Mode for topping off batteries, trickle charging, and to protect from overcharging.

VOLTAGE 16v Enabled

The RC12V battery charger is designed to operate in 12v mode by default. However, this model is designed to charge 16 volt batteries as well. 16V Mode changes the voltage from 12 volt applications to 16 volt applications. 16 Volt Mode charging has the same Turbo, Regular, and Soak modes but does so at different voltage levels to compensate for these batteries.

 Button Instructions:   MANUAL TURBO MODE

Hold both black buttons down to Access Turbo Mode. After the buttons are released you will be able to move the timer for minutes up or down.

 MANUAL SOAK MODE: Hold both black buttons down again to Access Soak Mode. After the buttons are released you will be able to move the timer for minutes up or down.

 Exit Modes: Hold both buttons down again to exit all Modes.

 Charging 16 Volt Batteries

Hold both black buttons down, the LCD will display Turbo minutes, continue to hold buttons down and the display will read 16 Volt enabled. Use the different mode instructions to set minutes.

MICROPROCESSOR CONTROLLED TECHNOLOGY, Utilizes EPROM technology and a patented design microprocessor controlled circuitry. In short, it provides you a fully automatic, hands-off battery charger.



Model   DC Output Amps              DC Output Volts               AC Input Amps  AC Input Volts   AC Input Freq.   Length (in.)                Width (in.)          Height (in.)         Weight (lbs.)

RT           25           12           7              117 *     60Hz *   12.0        7.0          7.0          24.0

* International voltages available

8 gauge, 6 feet long, battery cables included with charger unit. (Alligator clips not included-unfinished cable ends -add your specific ends).


The ROCK 12v/16v charger is a dual purpose charger for both 12 and 16 volt batteries and was designed and built specifically for the Auto Racing Industry.   The “Battery Type Switch” (found on the electronic control board) can be set for any type of lead acid battery including: sealed, (AGM absorb glass mat), gel cell, wet/deep cycle and applied glass mat as The Rock 12 and 16 volts batteries. Switch from 12 volt to 16 volt operation to recharge The Rock 16 volt battery.  Always attach the clips to each of the outside posts while charging The Rock 3-post 12/16v battery.

Never charge a 12 Volt battery in the 16 Volt setting.

The upper (4) Red LEDs on the front of the charger indicate at what output amperage rate the battery is charging.  Once the battery achieves 80% of its capacity the Red LEDs will have decreased and the Yellow 80% LED will turn On. When the battery is fully charged and ready for service the Green LED will indicate Ready.

The Automatic Hibernate mode is for long storage and shuts the charger down after 24 hours and applies a recharge cycle after every thirty days. If within the time frame the battery losses capacity because of a vehicle load within the 30 day period the charger will come out of the Hibernator stage, and again begin recharging the battery. The Rock charger has a 30 amp output rating assuring the fastest recharge time.

NOTE: If you are charging with a portable generator Always shut the charger Off FIRST and then turn the generator Off, especially any generator under 1400 watts.

As a safety feature, the charger will NOT output or begin charging unless it can read battery voltage.

Always make sure the charger is properly connected to the battery.

Take all safety precautions while using The Rock charger, as outlined in the Battery Charger Owner’s Manual packaged with your charger.

Weight 26 lbs.

Exact same as Moroso Power Charger # 74016 just different label-Made in CT.

Customers use a variety of methods to connect The Rock Chargers to their batteries, including alligator cable clips, bayonet connectors, top post, ring connectors, etc. Due to the variety of applications, we leave the soldered connector options up to the customer. Soldering assures a good connection to the contact terminals. Whatever option you choose, the appropriate hardware is available at any automotive parts store. Whatever hardware you choose, if must be rated at 30 amps or higher.

    • Weight
      60 lbs
    • SKU
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Products typically ship out between the same day and 1-3 days. Depending on the time/day ordered and the product type. Some products are made to order to spec and will ship once built. Feel free to call us at 704-871-0721 if you have any questions about shipping. Also call us if you are ordering large items like race car bodies as those are hard for the freight system to calculate sometimes and it will overestimate. Thank you.

We accept the following payment methods:

Accepted payment methods

And now Venmo & PayPay Credit

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately, we can’t offer you a refund or exchange.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. If the return is not based on a mistake on our part, a 15% restocking fee will apply.

Several types of goods are exempt from being returned. We also do not accept products that are hazardous materials, flammable liquids, or gases.

Additional non-returnable items:
* Gift cards
* Downloadable software products

To complete your return, we require a receipt or proof of purchase.

Please do not send your purchase back to the manufacturer. *Special cases might be returned to the manufacturer*

There are certain situations where only partial refunds are granted: (if applicable)
* Book with obvious signs of use
* Any item not in its original condition, that is damaged, or is missing parts for reasons not due to our error.
* Any item that is returned more than 30 days after delivery

Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next, contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items (if applicable)
Only regular priced items may be refunded, unfortunately, sale items cannot be refunded.

Exchanges (if applicable)
We only replace items if they are defective or damaged, or if we made the mistake.  If you need to exchange it for the same item, send us an email at and send your item to 304 5th Creek Road, Statesville, NC, 28625, United States.

To return your product, you should mail your product to:
304 5th Creek Road, Statesville, NC, 28625, United States.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

Depending on where you live, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.