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40A PWM Solar Charge Controller for RV, Boat and Shed Systems
A PWM controller is the simple, economical choice when panel voltage is close to battery voltage — a 12V panel on a 12V battery, for instance. It costs less than MPPT and has less to go wrong, which is why it still suits small RV, boat and shed systems.
Keep the array within 600W @12V / 1200W @24V.
Mount it close to the battery on a vertical surface with airflow around the heatsink, and wire battery first, then panels.
| Specification | Value |
|---|---|
| Rated Current | 40A |
| System Voltage | Auto recognition: 12V/24V (Manual setup optional) |
| Rated Power | 600W @12V / 1200W @24V |
| Max. Solar Input Voltage | < 55V |
| Max. Battery Voltage | < 34V |
| No-load Loss | <13mA @12V / <15mA @24V |
| Battery Compatibility | Lithium / Sealed / GEL / Flooded |
| Operating Temperature | –13°F to +131°F (–25°C to +55°C) |
| Protection Rating | IP30 (Dust/Splash Resistant) |
| Grounding | Positive Ground |
| Dimensions | 6.46 × 4.07 × 1.85 in |
| Net Weight | 0.86 lb |
| Package Dimensions | 8 × 6 × 4 in |
| Gross Weight | 2 lb |
- 1 x BRAVO LEGEND 40
- Light Control (10-min Delay), Light Control + Timer Control (1–14 h), Manual, Debug, and Normal On.
- User manual
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Frequently Asked Questions
How many panels can I connect?
Keep the array within 600W @12V / 1200W @24V. Watts alone are not the whole story — the panels' combined open-circuit voltage must also stay under the controller's input limit.
MPPT or PWM — which do I need?
MPPT harvests more, especially when panel voltage is well above battery voltage or in cold and low light, and it is the better choice for larger or 24V arrays. PWM costs less and suits small systems where panel and battery voltage are closely matched. This unit is PWM.
Which batteries does it charge?
Check the battery types listed in the specifications and set the matching profile before first charge.