The Powermania Turbo MV3 series is a line of waterproof, corrosion-resistant, and shock-resistant onboard battery chargers designed for recharging and maintaining 12V DC batteries in various marine applications and other harsh environments. These chargers feature Automatic 3-Stage Smart Charge and a Battery Selector, enabling full automation for charging and maintaining different types of 12V DC batteries. The charging process is designed to maximize battery potential and extend battery lifespan. The Turbo MV3 series also incorporates extensive safety features and intuitive LED indicators to protect the investment.
Function Description:
The primary function of the Turbo MV3 series charger is to charge and maintain 12V DC batteries. It utilizes a 3-Stage Smart Charge process:
- Bulk Stage: The charger provides its maximum constant current for fast charging until the battery reaches approximately 85% of its charge (14.5V for Lead-Acid/AGM mode).
- Absorption Stage: The charger continues to charge at a constant voltage (14.5V for Lead-Acid/AGM mode) while the charging current gradually decreases until the battery is 100% charged.
- Monitor / Float Stage: The charger initially idles, monitoring the battery's state of charge. If battery #1's voltage drops below 12.5V, a new charge cycle restarts. After a set idle period, a float voltage (13.4V for Lead-Acid/AGM mode) is applied to maintain the battery's full charge indefinitely.
The charger includes an Adaptive Loading feature, which automatically and dynamically adjusts the output level on each output bank. This ensures that more charging power is directed to more depleted batteries, allowing all connected batteries to be fully charged in the shortest possible time. The maximum current per output is limited to 25 Amps for safety.
Important Technical Specifications (All models):
- Input Voltage: 120/240V AC
- Input Frequency: 50/60Hz
- Output Voltage: 13.4V ~ 14.8V DC
- Max. Absorption Time: 3 hours
- Output Cable Length: 6 feet / 182 cm
- Power Cord Length: 6 feet / 182 cm
- Design Standard & Compliances: FCC Part 15 Class A, IP65 (Splash-proof), Marine UL 1236, CSA C22.2 No. 107.2, California Energy Commission (CEC)
Specific Model Variations:
The Turbo MV3 series offers several models with varying output configurations and total amperage:
| Manufacturer's P/N |
Model |
Max. Input Current (@120V AC) |
# 12V Output / Total Maximum Amp |
AC Wire Gauge / DC Wire Gauge |
Output Voltage Configuration |
Weight |
Dimension (Inch) |
Cooling Fan |
| 58301 |
M212V3 |
2.2 Amps |
2 output / 12 Amp |
18 AWG (AC) / 14 AWG (DC) |
2x12V or 1x24V DC |
7.8 lb. |
8⅝ x 6⅞ x 3 |
No |
| 58303 |
M220V3 |
2.7 Amps |
2 output / 20 Amp |
18 AWG (AC) / 12 AWG (DC) |
2x12V or 1x24V DC |
8.0 lb. |
8⅝ x 6⅞ x 3 |
Yes |
| 58304 |
M320V3 |
2.7 Amps |
3 output / 20 Amp |
18 AWG (AC) / 12 AWG (DC) |
3x12V or 1x24V + 1x12V or 1x36V DC |
8.5 lb. |
8⅝ x 6⅞ x 3 |
Yes |
| 58305 |
M230V3 |
5.9 Amps |
2 output / 30 Amp |
16 AWG (AC) / 12 AWG (DC) |
2x12V or 1x24V DC |
14.2 lb. |
10¾ x 8⅜ x 3⅝ |
Yes |
| 58306 |
M330V3 |
5.9 Amps |
3 output / 30 Amp |
16 AWG (AC) / 12 AWG (DC) |
3x12V or 1x24V + 1x12V or 1x36V DC |
14.8 lb. |
10¾ x 8⅜ x 3⅝ |
Yes |
| 58307 |
M430V3 |
5.9 Amps |
4 output / 30 Amp |
16 AWG (AC) / 12 AWG (DC) |
4x12V or 1x24V + 1x12V or 1x36V + 1x12V or 1x48V* |
15.3 lb. |
10¾ x 8⅜ x 3⅝ |
Yes |
| 58308 |
M240V3 |
7.2 Amps |
2 output / 40 Amp |
16 AWG (AC) / 12 AWG (DC) |
2x12V or 1x24V DC |
14.6 lb. |
10¾ x 8⅜ x 3⅝ |
Yes |
| 58309 |
M340V3 |
7.2 Amps |
3 output / 40 Amp |
16 AWG (AC) / 12 AWG (DC) |
3x12V or 1x24V + 1x12V or 1x36V DC |
15.2 lb. |
10¾ x 8⅜ x 3⅝ |
Yes |
| 58310 |
M440V3 |
7.2 Amps |
4 output / 40 Amp |
16 AWG (AC) / 12 AWG (DC) |
4x12V or 1x24V + 1x12V or 1x36V + 1x12V or 1x48V* |
16.0 lb. |
10¾ x 8⅜ x 3⅝ |
Yes |
*Each 12V output bank needs to be connected to a 12V battery. Batteries can be independent, linked in parallel, or linked in series.
Usage Features:
- Battery Type Selector: Allows users to select the appropriate charging profile for different 12V DC battery types:
- Flooded (Lead-Acid) / AGM (factory setting): For most standard lead-acid and AGM batteries (14.5V Absorption, 13.4V Float).
- 14.6 CV (Constant Voltage): For LiFePO4 (Lithium Iron Phosphate) batteries (14.6V Absorption, 0V Float). Consultation with the battery manufacturer is recommended for compatibility.
- AGM+: For TTPL (Thin Plate Pure Lead) AGM batteries like Odyssey and NorthStar (14.8V Absorption, 13.6V Float).
- LED Indicators: Provide intuitive feedback on the charger's status:
- Top LEDs: Power (green), Monitor On, Float Charge On, Error, AGM+ charge mode, 14.6 CV charge mode, Flooded (Lead-Acid) / AGM charge mode.
- Bottom LEDs: Charge status / DC connection check (Red for Charging, Green for Ready, Amber for DC connection fault).
- Adaptive Loading: Dynamically adjusts output to prioritize more depleted batteries, ensuring efficient charging.
- Safety Features: Ignition Protection, Overheat Protection, Over-Current Protection, Over-Voltage Protection, Reverse Polarity Protection, Short Circuit Protection.
- Installation: Designed for onboard mounting in well-ventilated areas, with specific instructions for optimal orientation and clearance. DC output cables must be connected to 12V batteries, and no output should be left unconnected.
Maintenance Features:
The Powermania Turbo MV3 charger requires no specific maintenance, but the following are recommended for optimal performance and battery longevity:
- Regular Cleaning: Clean battery terminals and charger's output ring terminals with baking soda and tighten all DC wiring connections.
- Battery Electrolyte Level: Regularly check and maintain proper battery electrolyte levels according to the battery manufacturer's instructions.
- Continuous Connection: Keep the charger plugged in during long storage periods to maintain a proper charge level, which helps extend battery life and performance.
- Fuse Replacement: Detailed instructions are provided for replacing AGC-1 (cylinder) and ATU (matchbox) style fuses, emphasizing the use of the correct fuse rating for each model. Always disconnect AC power and DC outputs before checking or replacing fuses.
Safety Precautions:
- Always work in a well-ventilated area and away from ignition sources when near batteries.
- Wear complete eye protection and protective clothing.
- Avoid contact with battery acid; if contact occurs, wash immediately with soap and water, and seek medical attention if acid enters eyes.
- Never smoke or allow open flames near batteries.
- Do not drop metal tools onto battery terminals to prevent sparks or short circuits.
- Remove all personal metal items (rings, bracelets, etc.) when working near batteries.
- Do not charge outside of the battery manufacturer's recommended temperature conditions.
- Do not use the charger for dry cell batteries.
- Do not operate the charger if any prewired cables or LEDs are damaged.
- Ensure all onboard connected electronic devices are powered off during charging.
- Always remove the grounded negative terminal from the battery first if removing a battery for charging.
- Ensure adequate ventilation around the battery during charging.
- Use only industrial-grade, UL-approved extension cords, connecting the charger end first.
- Do not bend the AC power cord or extension cord repetitively.
- Connect only to a properly grounded AC outlet protected by a Ground Fault Circuit Interrupter (GFCI) breaker.
- Always unplug the AC power cord before making any DC wiring connections to prevent electrical shock.
- Do not use 2-pin AC adapters or extension cords, and do not modify the factory-equipped AC power cord.
- Do not lay cables or wires in direct contact with or adjacent to the charger's case, as it can reach high temperatures.
- Avoid making any modifications to the factory-equipped cables, as this will void the warranty.
- Do not use unauthorized screws to tighten the battery selector cap, as this can damage the charger and cause personal injury.
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