---
product_id: 12061744
title: "IOTA Engineering (DLS30 30 Amp Power Converter/Battery Charger"
brand: "iota engineering"
price: "¥70057"
currency: JPY
in_stock: true
reviews_count: 8
category: "Iota Engineering"
url: https://www.desertcart.jp/products/12061744-iota-engineering-dls30-30-amp-power-converter-battery-charger
store_origin: JP
region: Japan
---

# 30A continuous output 400W power for lead-acid batteries Runs cool & silent, no fan noise IOTA Engineering (DLS30 30 Amp Power Converter/Battery Charger

**Brand:** iota engineering
**Price:** ¥70057
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up like a pro — clean, cool, and always ready to charge!

## Quick Answers

- **What is this?** IOTA Engineering (DLS30 30 Amp Power Converter/Battery Charger by iota engineering
- **How much does it cost?** ¥70057 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/12061744-iota-engineering-dls30-30-amp-power-converter-battery-charger)

## Best For

- iota engineering enthusiasts

## Why This Product

- Trusted iota engineering brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Dual Voltage Modes:** Switchable 13.6V/14.2V output for precise battery charging and equalization control.
- • **Ultra-Clean DC Output:** Protects sensitive electronics with minimal AC ripple, extending equipment lifespan.
- • **Whisper-Quiet Operation:** Runs cool and silent with no annoying fan noise, perfect for professional environments.
- • **Robust Build with Easy Wiring:** Heavy-duty screw lugs accommodate multiple large wires safely and securely.
- • **Consistent 30 Amp Power Delivery:** Reliable 30A continuous output ensures your devices run smoothly without interruption.

## Overview

The IOTA Engineering DLS30 is a high-quality 30 Amp, 400 Watt DC power converter and battery charger designed for professional-grade performance. It delivers ultra-clean, switchable voltage output (13.6V/14.2V) with minimal AC ripple, ensuring safe and efficient charging of lead-acid batteries and sensitive 12V electronics. Built to run cool and silent, it features robust screw lug terminals for secure wiring and comes with a 2-year warranty, making it a trusted choice for RVs, security systems, and demanding power applications.

## Description

High quality engineering is the hallmark of IOTA, and the DLS series is no exception; their exceptionally clean DC output protects your equipment and ensures you get perfect results every time you power up. The DLS-30 provides 400 watts at 30 amps, and is great for use with a high power charger, or for charging lead-acid batteries directly!Specifications Output power: 30A continuous, 400WOutput voltage: 13.6/14.2V DC (switchable)Input voltage: 108-132V ACAC power cord: IntegratedWarranty: 2 yearsWeight: 2300gDimensions (LxWxD): 246x170x86mm

Review: High quality power supply. - I bought this unit to replace an old 30 amp 12 volt power supply in an RV. The old power supply had very high ac ripple even with a battery connected. This DLS 30 has very low ac ripple even with NO storage battery connected. The float charge voltage measured 13.54 volts at the battery. The 13.54 volt float charge level will not 'fry' batteries like so many of the cheap power supply/chargers tend to do when connected to the battery for extended periods. Never had the cooling fan turn on so far. The supply runs cool. Purity of the output was much higher than I was expecting. This supply should be O.K. for 12v TV's, CB radios, 12v audio systems, etc. The unit's output terminations are nice big screw lugs that can accommodate multiple large wires easily with no danger of shorts. My old power supply had a constant low level audible hum. This supply is dead quiet. The supply comes with a short dongle that plugs into a modular phone jack on the side of the supply. When the dongle is plugged in, the output of the supply goes to 14.2 volts to equalize the battery cells. If you buy the smart charger option this is the place it would plug in instead of the dongle. I bought the smart charger option but elected not to use it. I decided I'd prefer to have a constant 13.6 volt nominal output rather than have the supply occasionally automatically switching up to 14.2 volts. When equalization is desired, sensitive equipment can be disconnected and then the dongle can be plugged in to manually bring the charging voltage up to 14.2 volts. (Just have to remember to remove the dongle after equalization!) As other reviewers mentioned, no output wiring is included with the supply. You'll have to make up your own alligator clip leads or whatever. For replacement use in an RV, remove the old unit and connect the existing RV wiring to this new supply. Just make sure to keep the polarity correct. UPDATE: It's 2023 and the DLS30 is still working fine. For the last 2 years, the unit has been running 24/7. July 2, 2024: PS is still running 24/7 in a mostly unoccupied trailer with no ac in the Nevada desert heat. Amazing! I imagine the capacitors will need to be replaced at some point because the caps are frying in the heat. ( I need the PS running to power my 12 volt outdoor security lighting.)
Review: Worked great for 4 yr stopped working the other day - I bought this from desertcart as a used model I think maybe it could have been warranty work or possibly a return it was professionally repackaged with all literature,,, it was wicked easy to set up I had an old pair of jumper cables lying around I cut a little out of that and used it for my cables,,, I crimped pins on the end to insert into the unit itself and then I simply put alligator clamps on the other end that way I can clamp it to battery bank,,,,or another bank quite easily,,,I used the little plug for bulk charging,,,as we've have alot of over cast,,,,rain,,,etc. didn't take long to top off my bank,,,I went ahead and mounted on the wall,,,my only concern is that when I bulk charge with plug inserted into the back that I don't overcharge my bank,,, others here have said there's a light on this for charging and when fully charged,,, I'll have to turn all the lights off in the house and see if I can see it I didn't notice anything like that,,,would this unit turn it's self off when bulk charging like that with the little plug inserted on the back?,,,,or will I have to keep an eye on it.I waited till it was at 14.1 volts and kept it pluged in for about 20 min. or so then unplugged it.don't know if I did this right or not and I have not tried regular charging w/o plug in back inserted,,,I thinking regular charging would be auto.?????if anyone knows more then I do please feel free to tell me all about it ..................::::::regards:::::::::::Bill R..............

## Features

- The package length is 32.4 centimeters
- The package height is 10.8 centimeters
- The package width is 18.8 centimeters
- Package Weight : 2.199 kilograms

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00A0V5HPC |
| Best Sellers Rank | #139,753 in Automotive ( See Top 100 in Automotive ) #570 in Battery Chargers |
| Brand | IOTA Engineering |
| Customer Reviews | 4.3 4.3 out of 5 stars (371) |
| Date First Available | February 2, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.5 pounds |
| Item model number | DLS30 |
| Manufacturer | IOTA Engineering |
| Manufacturer Part Number | DLS-30 |
| Product Dimensions | 12.5 x 7.5 x 4.5 inches |
| Safety Rating | Não Aplicável |

## Images

![IOTA Engineering (DLS30 30 Amp Power Converter/Battery Charger - Image 1](https://m.media-amazon.com/images/I/91dXvHPNURL.jpg)

## Questions & Answers

**Q: Will this charge a 100 ah lifepo4 - lithium iron 12 volt deep cycle battery and approx. how long from say dead to full charge ?**
A: Hello Franx, Sorry for the delayed response. According to my math, around 90 minutes.

**Q: I bought a 13 amp port plug ( https://www.amazon.com/dp/B009ANV81S/ref=cm_sw_r_cp_apa_PGH2Ab3XGSCQM ) to go with this. Will this work?**
A: I do not know. My old one is exactly like this one and it works great

**Q: can i have this unit hooked up and charging my bank while my solar panels are charging at the same time??**
A: William, I would shut off or disconnect the battery charger while charging from your solar panels. It would not hurt anything if they both ran at the same time. But, the charge controller for you panels can see the output voltage from the IOTA and figure the batteries are full and disconnect the solar input. John

**Q: can i run this the dls 30 off a 2000 watt honda generator when dry camping? thanks in advance.**
A: Absolutely! Keep in mind that it's not power factor corrected though, so it will only be about 60% efficient on the generator.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality power supply.
*by J***. on August 21, 2014*

I bought this unit to replace an old 30 amp 12 volt power supply in an RV. The old power supply had very high ac ripple even with a battery connected. This DLS 30 has very low ac ripple even with NO storage battery connected. The float charge voltage measured 13.54 volts at the battery. The 13.54 volt float charge level will not 'fry' batteries like so many of the cheap power supply/chargers tend to do when connected to the battery for extended periods. Never had the cooling fan turn on so far. The supply runs cool. Purity of the output was much higher than I was expecting. This supply should be O.K. for 12v TV's, CB radios, 12v audio systems, etc. The unit's output terminations are nice big screw lugs that can accommodate multiple large wires easily with no danger of shorts. My old power supply had a constant low level audible hum. This supply is dead quiet. The supply comes with a short dongle that plugs into a modular phone jack on the side of the supply. When the dongle is plugged in, the output of the supply goes to 14.2 volts to equalize the battery cells. If you buy the smart charger option this is the place it would plug in instead of the dongle. I bought the smart charger option but elected not to use it. I decided I'd prefer to have a constant 13.6 volt nominal output rather than have the supply occasionally automatically switching up to 14.2 volts. When equalization is desired, sensitive equipment can be disconnected and then the dongle can be plugged in to manually bring the charging voltage up to 14.2 volts. (Just have to remember to remove the dongle after equalization!) As other reviewers mentioned, no output wiring is included with the supply. You'll have to make up your own alligator clip leads or whatever. For replacement use in an RV, remove the old unit and connect the existing RV wiring to this new supply. Just make sure to keep the polarity correct. UPDATE: It's 2023 and the DLS30 is still working fine. For the last 2 years, the unit has been running 24/7. July 2, 2024: PS is still running 24/7 in a mostly unoccupied trailer with no ac in the Nevada desert heat. Amazing! I imagine the capacitors will need to be replaced at some point because the caps are frying in the heat. ( I need the PS running to power my 12 volt outdoor security lighting.)

### ⭐⭐⭐⭐⭐ Worked great for 4 yr stopped working the other day
*by W***Y on December 30, 2015*

I bought this from Amazon as a used model I think maybe it could have been warranty work or possibly a return it was professionally repackaged with all literature,,, it was wicked easy to set up I had an old pair of jumper cables lying around I cut a little out of that and used it for my cables,,, I crimped pins on the end to insert into the unit itself and then I simply put alligator clamps on the other end that way I can clamp it to battery bank,,,,or another bank quite easily,,,I used the little plug for bulk charging,,,as we've have alot of over cast,,,,rain,,,etc. didn't take long to top off my bank,,,I went ahead and mounted on the wall,,,my only concern is that when I bulk charge with plug inserted into the back that I don't overcharge my bank,,, others here have said there's a light on this for charging and when fully charged,,, I'll have to turn all the lights off in the house and see if I can see it I didn't notice anything like that,,,would this unit turn it's self off when bulk charging like that with the little plug inserted on the back?,,,,or will I have to keep an eye on it.I waited till it was at 14.1 volts and kept it pluged in for about 20 min. or so then unplugged it.don't know if I did this right or not and I have not tried regular charging w/o plug in back inserted,,,I thinking regular charging would be auto.?????if anyone knows more then I do please feel free to tell me all about it ..................::::::regards:::::::::::Bill R..............

### ⭐⭐⭐⭐⭐ Iota engineering
*by A***E on January 31, 2025*

Works well .. great for the money. Durability is good

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-09*