view large photo

Swipe Photo to View More

Iota 12v 55 Amp Charger Converter Power Supply IOTA-DLS1255

Was: $264.00
Sale Price: $244.00
- No Tax
This item qualities for
$7.50 Flat Rate Shipping*

OR Simple-Click Checkout
In Stock

This Qualifies for FLAT RATE Shipping of $7.50 per order*
55 amps of Made in the USA battery charging!

Share this item with your friends

Product InformationStore Part Number: IOTA-DLS1255


Using state-of-the-art switch-mode technology, the DLS Power Supply series is engineered with the user and variable environmental conditions in mind. Extra care has been given to insure many years of service-free operation, even when subjected to extremely harsh conditions. Batteries are charged quickly and efficiently without overcharging. Pumps, motors, and fans operate perfectly for prolonged life.

IOTA Engineering uses advanced switch mode technology to bring to market highly sophisticated electronic converter/power supplies at appealing affordability.

Exceptionally clean DC output ensures pumps, motors, fans, and lights work perfectly. This means longer life for any connected load, and virtually no AC ripple to cause static or premature failure of radio or television equipment.

The DLS series converter/charger quickly and efficiently charges batteries from the full rated output of the DLS. The DLS then maintains the batteries, only putting into the battery what is required by load or self-discharge, cutting back to milliamps as the battery requires.

Low and transient AC line voltage is a major cause of converter/power supply failure. The DLS series converter/power supply is protected against low line voltage, as well as spikes coming from the AC power source or from improperly adjusted generators.

The DLS series converter/power supply meets F.C.C. criteria, minimizing radio and television equipment interference, especially on the lower frequency bands.

The DLS series converter/power supply can be used with or without a battery. When used as a converter/power supply, the DLS model will only supply what the load requires. When not in use it is essentially off, reducing electricity usage.

Even in its subcompact size, the DLS series converter/power supply, at full load, has an operating temperature half that of some switch mode electronic models. This means substantially longer life and safer operation.

Tight line-load regulation ensures that the output voltage holds steady from no load to full load. This keeps pumps, motors, and lights working at the correct voltage even during brown out situations.

Proportional Fan Circuitry provides an extra measure of protection. During times of heavy load demands, the automatic circuitry will activate the fan before thermal stress can occur on any internal components. Reliability and durability is built into all DLS models.

In the event the batteries or the DLS unit is wired incorrectly, the DLS converter/power supply is protected from damage. External fuses can be quickly and easily replaced.

Iota DLS can be used without a battery as a straight power supply. Exceptionally good unit for RV, remote camping sites, recharge of large DC powered audio systems, and where generator power is used to power the charger. #IOTADLS1255


  • Iota Engineering DLS converter/charger quickly and efficiently charges batteries from the full rated output of the DLS. The DLS then maintains the batteries, only putting into the battery what is required by load or self-discharge, cutting back to milliamps as the battery requires. Exceptional clean DC power, input ranges 96–140 VAC 47–63 Hz. All models ship with IQ Smart 4 Stage Charge Controller.
  • Optimal 3 Step Charging
  • Demand Sensing
  • Reverse Polarity Protection
  • Over Voltage Protected
  • Safe for ALL Lead Acid batteries
  • Short Circuit Protection
  • Overload Protection
  • Line Regulation
  • Load Regulation
  • Fan Control
  • Thermal Protection
  • Output Regulation
  • 2 Year Warranty


* Flat Rate shipping is for the lower 48 states only.

Tech Specs

  • Dimensions (LxWxH): 7 x 6.75 x 3.75 in
  • Weight: 6 lb
  • Shipping Weight: 8 lb
  • DC Output Amps: 55 A
  • Output Voltage Charging: 14.76 V
  • Output Voltage Tolerance (No Load): +/- 0.7%
  • Absorption Voltage: 14.16 V
  • Maximum AC Current @ 108 VAC: 13.4 A
  • AC Input Volts Freq.: 47/63 Hz
  • AC Input Volts Range: 108-132 V
  • Float Current: Variable
  • Manufacturer: Iota
  • Float Voltage: 13.56 V
  • Typical Efficiency: 80%
  • Maximum Power Output, Continuous: 750 W
  • Max Inrush Current, Single Cycle: 30 Amps
  • Charge Reset: Battery Voltage Threshold: 12.6 V
  • Working Temperature: 0° to +40° C
  • Storage Temperature: -20° to +80° C
  • Over Temperature: Off @ 80° C
  • Ripple and Noise: 50 mV rms
  • Output Banks: 1
  • Regulatory Approval: UL Listed
  • Manufacturer Part #: IOTA-DLS1255

Customers who bought this product also bought:

Reviews and Ratings

5.00 Average
5 Stars 1
4 Stars 0
3 Stars 0
2 Stars 0
1 Stars 0
Rated 5.00/5 Stars from 1 customer reviews.

Do you own the IOTA-DLS1255? Please, tell us what you think about it. It helps us provide you with better products. Please note that it may take up to 72 hours for your review to appear.

This Charger Rocks
Pros: Steve from your staff recommended this charger and I couldn't be happier. This baby keeps my battery bank in top shape with no fuss. It's easy to use and very efficient. I haven't had it long so I can't speak to it's longevity, but the construction SCREAMS quality. I expect many years out of it.
Cons: Haven't found any yet.
Other Thoughts: You can find much cheaper chargers out there, but not like this one.
Is this review helpful?
Written by Anonymous on Jun 06, 2013. Ownership: Use regularly. Knowledge Level: AC/DC is more than a band — (81 of 155 customers found this review helpful

See More Reviews

Manuals & Tutorials

Chargers Tutorial

Why does it read 13 volts?

Order Line: 1-800-362-5397
M–F 6am–5pm PST
Tech Help: 541-474-4421
Fax: 541-471-6014
276 Tech Way, Suite A
Grants Pass, OR 97526
Buy Veteran, SEMA Member, and Blueribbon Coalition Blueribbon Coalition SEMA Member Buy Veteran