An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. A safe default for a typical trailer.
Amazon $248.99
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.
- 90 AOutput
- NoLithium mode
- StandaloneBuild
- 2 yearsWarranty
Price checked November 2, 2026. As an Amazon Associate we earn from qualifying purchases.
- Low ripple, tightly regulated output that also works as a bench power supply
- Fan speed rises gradually with temperature, so there is no sudden fan start at night
- Built in IQ4 controller gives four-stage charging with a weekly equalize for flooded batteries
- 90 A suits a large battery bank or heavy 12 V loads
- Lithium charging needs the separate IQ-LIFEPO controller
- Draws up to 21.8 A from the AC side and needs a 30 A breaker
The IOTA DLS family
Every IOTA DLS model we rank, smallest first. Ratings compare each against its own build.
| Model | Output | Rating | Price |
|---|---|---|---|
| IOTA DLS-30 | 30 A | 2.0/5 | $217.28 |
| IOTA DLS-45/IQ4 | 45 A | 2.5/5 | $252.40 |
| IOTA DLS-55 | 55 A | 2.5/5 | $241.19 |
| IOTA DLS-90/IQ4 (this one) | 90 A | 3.0/5 | $379.99 |
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its build. How we rank explains each one.
Specifications
| Model number | DLS-90/IQ4 |
|---|---|
| Charging | |
| Output | 90 A |
| Lithium mode | No |
| Multi-stage charging | Yes |
| Build | |
| Build | Standalone |
| Fan runs only as needed | Yes |
| Remote or display | No |
| Weight | 7.8 lb |
| Warranty | 2 years |
Alternatives in this build
An easy drop in for an RV that already has a WFCO 9800 deck mount, with lithium detection built in. A safe default for a typical trailer.
Amazon $239.99A straightforward lead acid converter charger for a trailer that will keep its flooded or AGM batteries.
Amazon $191.99Compare
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