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.

Victron Energy Bcd 802 80 Amp Diode Battery Combiner 2

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

⚡ Power your mission-critical gear without missing a beat!

ROBUST 80 AMP CAPACITY - Handles high current loads effortlessly for demanding applications
COMPACT DURABLE DESIGN - Lightweight 0.5 kg unit built for easy installation on non-flammable surfaces
UNINTERRUPTED POWER FLOW - Ensures mission-critical systems stay online even if one battery fails
EFFICIENT LOW VOLTAGE DROP - Schottky diode technology minimizes energy loss and heat generation
SMART PARALLEL BATTERY SUPPORT - Combine multiple DC sources seamlessly for enhanced reliability

The Victron Energy BCD 802 is a high-quality 80 amp diode battery combiner designed to maintain continuous DC power by paralleling two or more batteries. Featuring low voltage drop Schottky diodes, it guarantees uninterrupted operation of essential equipment like electronic engine controls, making it ideal for professional-grade applications requiring reliable power redundancy.

Specifications

ASIN	B01F713B7A
Amperage	80 A
Antenna Location	HEPA filter
Battery Capacity	80 amp_hours
Battery Cell Composition	Lithium Ion
Battery Cell Type	Lithium Ion
Battery Weight	1.7 ounces
Best Sellers Rank	#237,595 in Automotive ( See Top 100 in Automotive ) #2,756 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	4.9 out of 5 stars 35 Reviews
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 kg
Manufacturer	Victron Energy
Model Name	BCD Diode Battery Combiner
Model Number	BCD 802
Recommended Uses For Product	HEPA filter
Reusability	Single Use
Unit Count	1 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

Sehr gute Qualität

Passt so

1.09.2025

J**E

Aislador baterías

Lleva un año funcionando y sin problemas

18.12.2024

M**I

5.07.2024

M**S

In Ordnung

Robustes Gerät und tut was es soll..

28.04.2024

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€ 105.12

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Victron Energy BCD 802 80 amp Diode Battery Combiner (2 Batteries)

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Description

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Common Questions