Is there voltage drop and does this have a switch to emergency jumpstart the starter battery?

Yes, it has a voltage drop. the word "diode" in the title describes it. And no, there's no switch.

is it safe to combine lead -acid with lith ion

using this as instructed yes, you can power the load from different chemistries. the higher voltage will "win" and supply the load.

is that maximum amperage output 80amps or 160amps?

For the Victron Energy BCD 802 80 amp Diode Battery Combiner (2 Batteries) maximum output is 80amps. -Oni Tools

does this device allow current draw from both sources simultaneously? if both battery banks are at the same voltage?

Yes, the combiner allows current draw from two sources of the same voltage at the same time up to 80 amp current draw. It can for example be hooked to two 12/24/ or 36v battery banks to combine them to share the load for powering a source such as a power inverter.

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VT18932

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Description

🔌 Power Up Your Peace of Mind!

SAFETY FIRST - Mount on non-flammable surfaces to prevent hazards.
COMPACT DESIGN - Lightweight at just 1.3 lbs for easy installation.
LOW VOLTAGE DROP - Utilizes Schottky diodes for efficiency.
UNINTERRUPTED POWER - Ensures continuous DC power to critical systems.
PARALLEL POWER SOURCES - Connects multiple DC sources seamlessly.

The Victron Energy BCD 802 is an 80 amp diode battery combiner designed to ensure uninterrupted power supply to mission-critical equipment by allowing multiple DC power sources to work in parallel. Its compact design and low voltage drop make it an efficient choice for reliable energy management.

Specifications

ASIN	B01F713B7A
Amperage	80 Amps
Antenna Location	HEPA filter
Battery Capacity	80 Amp Hours
Battery Cell Type	Lithium Ion
Battery Weight	1.7 Ounces
Best Sellers Rank	#200,129 in Automotive ( See Top 100 in Automotive ) #2,841 in Automotive Replacement Battery Accessories
Brand	Victron Energy
Built-In Media	Victron Energy BCD 802 80 amp Diode Battery Combiner (2 Batteries)
Compatible Phone Models	HEPA filter
Customer Reviews	4.8 4.8 out of 5 stars (34)
External Testing Certification	Não Aplicável
Item Dimensions	3 x 4.7 x 2.4 inches
Item Type Name	Victron Energy BCD 802 80 amp Diode Battery Combiner (2 Batteries)
Item Weight	0.5 Kilograms
Manufacturer	Victron Energy
Model Name	BCD Diode Battery Combiner
Model Number	BCD 802
Reusability	Single Use
Unit Count	1.00 Pack
Voltage	1.5 Volts
Warranty Description	Warranty

Reviews

H**Z

Well build

High quality product

14.02.2026

D**N

Excellent build quality

Excellent build quality and easy to install. It is being used on a boat to support the continuous operation of a steering pump.

26.08.2025

P**X

Great combiner!

Victron, my only choice!!

16.09.2021

M**I

Technical

Very good product and usfull mixing different battery sizes of same voltage. Save me from my complex system I used to have to gain control on such batteries . Ideal as a back up system should system battery gets discharged on a cloudy day .

23.01.2026

A**R

Very good

30.03.2025

F**D

Passt so

1.09.2025

J**E

Lleva un año funcionando y sin problemas

18.12.2024

M**I

5.07.2024

M**S

Robustes Gerät und tut was es soll..

28.04.2024

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VT18932

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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