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Samlex BGW-40 Waterproof Battery Guard - 40 Amps

Out of StockNewSKU: BGW-40
$141.53$166.50per unit
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Special order from Samlex America — Estimated 2–4 weeks.

Quick Specs

Type: Covers

Description

BGW-40 Waterproof Battery Guard - 40 Amps

The Battery Guard Waterproof BGW-40 is an intelligent, user-programmable, fully waterproof battery guard. The battery guard prevents the excessive discharge of the battery (which would damage the battery) and protects electronic appliances against overvoltage. Includes “Automatic Board System Detection,” the BG automatically detects the battery voltage (12 or 24V). The BGW-40 battery guard is capable of carrying a 40A continuous load and 45A transient load. There is a choice out of 10 on/off threshold voltage programs, for both 12V and 24V battery systems, which can be easily programmed. The BGW has additional options for a remote off switch and an alarm output for connecting a buzzer, LED strip, or relay.

Features:

  • Can be set to connect/disconnect at several different voltages with jumpers
  • Helps batteries last longer
  • Prevents damage to connected components
  • Prevents excessive voltage caused by faulty alternators or chargers
  • Fully waterproof

Applications:

  • Marine, automotive, and recreational

Specifications:

  • Input: 6-35 VDC
  • Output: 6-35 VDC
  • Amps: 40 Amps
  • Weight: (lbs) 0.4 / (kg) 0.2
  • Dimensions: (inch) 2.44" x 2.83" x 1.26" / (mm) 62 x 72 x 32

*No battery included

Quick Specs

Type = Covers

Accessories

No accessories listed for this product.

Specifications

SKUBGW-40
UPC622988086472
BrandSamlex America
CategoryAutomotive/RV
Country of OriginNETHERLANDS
Weight0.45
Dimensions3 x 3 x 2
StatusActive
Last Synced10/4/2026, 2:07:00 AM

Compliance & Shipping

Returnable

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Samlex BGW-40 Waterproof Battery Guard - 40 Amps

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Price$141.53$8.50$5.36$36.54$14.45
BrandSamlex AmericaBluewaterWhale MarineBoss AudioBluewater
ConditionNewNewNewNewNew
AvailabilityOut of StockIn StockIn StockIn StockIn Stock
Weight0.450.50.10.20.3
Dimensions3 x 3 x 28 x 4 x 13 x 2 x 25 x 3 x 16 x 5 x 2
SKUBGW-409057-4914-21273123MRANT109057-4914-148
CountryNETHERLANDS—UNITED STATESCHINA—
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