# Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC

The Nilight 90804A battery disconnect switch is a four-position selector for systems using two battery banks. Its 1-Both-2-Off settings can select either bank, combine them, or disconnect them, while the listing gives separate continuous, intermittent, and cranking current ratings.

- [Original product page](https://best-deals.pro/product/nilight-90804a-battery-disconnect-switch)
- [View offer](https://best-deals.pro/visit/nilight-90804a-battery-disconnect-switch)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Nilight
- Model: 90804A
- Category: Cars & Motorcycles > Vehicle Accessories
- Price: 28.89 USD
- Previous price: 33.99 USD
- Discount: 15%
- Price checked: 2026-11-14T19:02:41.611Z
- Rating: 5 / 5
- Reviews: 1

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Four selector positions are described for choosing battery 1, battery 2, both banks, or off.
- The listing specifies 350 A continuous, 600A for up to 5 minutes, and 1200A for up to 30 seconds, with a maximum operating voltage of 32V DC.
- Manufacturer claims a make-before-break contact design for switching between banks without interrupting power.
- The listing describes surface, front-panel, or rear-panel mounting options, but the technical details specifically list Surface Mount.

## Pros

- The four-position selector provides separate-bank, combined-bank, and off settings in one switch.
- Separate current ratings clarify the stated continuous and time-limited operating ranges.
- The listing names marine, RV, off-road, and other vehicle applications.

## Specifications

### Identity and ratings
- Brand: Nilight
- Model: 90804A
- Operation mode: 1-Both-2-Off
- Number of positions: 4
- Continuous current rating: 350 A
- Intermittent current rating: 600A for up to 5 minutes
- Cranking/peak current rating: 1200A for up to 30 seconds
- Maximum operating voltage: 32V DC
### Electrical and mounting details
- Contact type: Normally Open
- Connector type: Crimp
- Terminal: Screw
- Circuit type: 2-way
- Mounting type listed: Surface Mount
- Dimensions listed: 5 x 2 x 2 inches
### Materials and protection
- Material listed: Acrylonitrile Butadiene Styrene
- Contact material: Copper
- International protection rating: IP00
- Specification met: CE
- Upper temperature rating: 176 °F
### Compatibility claims
- Compatible vehicle types: marine boat car rv truck
- Compatible devices: marine yachts, RVs, motorhomes, travel trailers, 4x4 off-road trucks, modified vehicles, and ATVs/UTVs

## Before you buy

- The listing says to shut down the engine and all power loads before moving the switch, warning that switching with the engine running can cause voltage spikes and damage the alternator.
- Mounting claims are not fully aligned: the feature text lists surface, front-panel, and rear-panel options, while the technical field lists only Surface Mount. The connector is described as Crimp, while the terminal is Screw. The details give the contact material as Copper, while the feature text specifies tinned copper studs. Confirm the mounting and connection arrangement for the intended installation.

## In the box

- Battery disconnect switch (Included)
- 4 heavy-duty mounting screws (Check selected pack): Mentioned in the feature text, but absent from the explicit included-components list.

## A good fit for

- Owners of a two-battery vehicle or boat system who want selectable battery 1, battery 2, both, and off positions.
- Installations whose required voltage and current ratings fit the listing's stated limits and operating durations.

## Less suited to

- Buyers who need a confirmed waterproof or dust-resistant switch. The listed protection rating is IP00.
- Anyone intending to change switch positions while the engine or connected loads are running.

## Customer feedback

The supplied rating is entirely five-star but comes from a single rating, so it offers very limited evidence about reliability or customer experience. No written customer feedback is provided. Buyers should assess compatibility and the stated installation cautions directly rather than treating the rating as confirmation of performance.

## Frequently asked questions

### What do the 1-Both-2-Off positions do?
The listing describes selecting battery 1, battery 2, both banks together, or off.
### What are the current ratings?
The stated ratings are 350 A continuous, 600A for up to 5 minutes, and 1200A for up to 30 seconds. The maximum operating voltage is 32V DC.
### Can the switch be moved while the engine is running?
The listing says to shut down the engine and all power loads before changing positions, warning that switching while the engine is running can cause voltage spikes and alternator damage.
### Is the switch waterproof?
Waterproofing is not established by the supplied details. The listed protection rating is IP00, so do not treat the switch as water-resistant based on these claims.

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## Images

![Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC — 1](https://best-deals.pro/i/mrNHSecyuLKtk3SiA3VVOhh5ikAzdU0FWqmYz60Enfs86YT9A6HYAaf5003YwO3h4xFlwvkiANDaS9_AGgTXwiTl_nCQr-ZK_v7sAycSiuGhNy8g2HyG.jpg)

![Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC — 2](https://best-deals.pro/i/rc1HesB5hqhlXiPSJIPgA2wDXJZHyOXSqt-lqQsZLwsR857HcJNX2q5fOCdJlBYNkSjKGaJcHGip5kWMJ-VcwNW3JqY_A4gi-TGdzyKrY8cRGMG8R1Ku.jpg)

![Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC — 3](https://best-deals.pro/i/ZFJrmbA2539JFM-X45nnRtIKIyjeCfvM144kfmGWeEvQGkkCJD8DvBvWHnHywrNB1NiIRD-Djik3EmsP0vSjrdAxo4Xdn9pYRvCmJy1faQco9TbB2QJb.jpg)

![Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC — 4](https://best-deals.pro/i/nuqI0OOx2CI8g7-gYTmWe3oGzRYkXUG-bNn9TrYFPdpERqj-wQ1KpQQM99nKTAXzH3D9HJy4IbIO4p21m9sMNp6enYT6CA1Qhj93a97OWiLXPou0B4hl.jpg)

![Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC — 5](https://best-deals.pro/i/dPzzczVlfDedOaVphXm7qG0OqTCYY8izi0Ane102CQpuP0QvQeMS-cLfXCf7pVBfitPVj7SVS0l98PCjc_jY82A4E60-gk78TltaFi8KdoPnseDeSx2E.jpg)

![Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC — 6](https://best-deals.pro/i/PD9GXOtxIhiiyD2otKyWpqFWJoi0LqKxjXvGEnNd9h3PfJGA_GTLUv5tWLiSibKlzECLq0Zi9djXGsqdPtFJRlPjqA17cw4sUDrNagEVmyHpXY_W2i38.jpg)

![Nilight 90804A Battery Disconnect Switch, 350 A, 32V DC — 7](https://best-deals.pro/i/4g1J0pQF3tQkWGEeaSH1aIOxNMa44173ky95OIO0aHqshK6ZoMBIdaRNJXeWB42cfGO9VlgutYSD1pKeZcksORR2ZJN3ABV2YET3xKHMinRipkvYmf9Z.jpg)