IOTA DLS-55
#13 in StandaloneFull review
A rugged, regulated converter for owners who value clean DC power and want to add the right charge controller themselves. Budget for an IQ controller if you want real battery charging.
Amazon $241.19$241.19
The IOTA DLS-55 and the IOTA DLS-45/IQ4 are evenly matched, rated 2.5 and 2.5. The IOTA DLS-55 leads on value and output. The IOTA DLS-45/IQ4 wins on features. The IOTA DLS-55 costs $11.21 less ($241.19 vs $252.40).
IOTA DLS-45/IQ4
#14 in StandaloneFull review
A rugged, regulated converter for owners who value clean DC power and want to add the right charge controller themselves. The built in IQ4 makes it a complete lead acid charger.
Amazon $252.40$252.40
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the IOTA DLS-55 for value ($4.39 per amp ($241.19, 55 A) vs $5.61 per amp ($252.40, 45 A)) and output (55 A vs 45 A).
- Choose the IOTA DLS-45/IQ4 for features (multi-stage charging, fan runs only as needed vs fan runs only as needed).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every standalone RV converter charger; a clear win is highlighted. How we rank explains each one.
| Factor weight | IOTA DLS-55 | IOTA DLS-45/IQ4 |
|---|---|---|
| Overall rating | 2.5/5 | 2.5/5 |
| Value 35% | 36 $4.39 per amp ($241.19, 55 A) | 21 $5.61 per amp ($252.40, 45 A) |
| Output 10% | 50 55 A | 30 45 A |
| Features 30% | 20 fan runs only as needed | 40 multi-stage charging, fan runs only as needed |
| Warranty 25% | 25 2-year warranty | 25 2-year warranty |
Specifications
| IOTA DLS-55 | IOTA DLS-45/IQ4 | |
|---|---|---|
| Charging | ||
| Output | 55 A | 45 A |
| Lithium mode | No | No |
| Multi-stage charging | No | Yes |
| Build | ||
| Build | Standalone | Standalone |
| Fan runs only as needed | Yes | Yes |
| Remote or display | No | No |
| Weight | 5 lb | 5 lb |
| Warranty | 2 years | 2 years |