When the battery goes over voltage does the unit move the power to a lower voltage battery or does it just dissipate the power in the heat sink?

No, it dissipates power from the higher battery.

Can this be used to balance my 24v lithium battery that is made up of 8 x 3.2v series-connected cells?

No. This is for balancing 12v batteries in series that already have their own BMS.

Do connect the 4battery bank with the 4/0 cable (I use 4/0 ) or do you connect with 18 awg wire, which is min. spec. of wire connect battery balancer?

Hi, the 4/0 won't fit in the Battery Balancer's connectors. Also, the current that will flow in it does not justify the use of a 4/0AWG wire. I'd go with Victron's recommendation : 18AWG

Will this protect both the starting (lead acid) and an auxiliary lipo battery. will it protect the alternator?

The Battery Balancer equalizes the state of charge of two series connected 12V batteries, or of several parallel strings of series connected batteries. When the charge voltage of a 24V battery system increases to more than 27V, the Battery Balancer will turn on and compare the voltage over the two series connected batteries. The Battery Balancer will draw a current of up to 1A from the battery (or parallel connected batteries) with the highest voltage. The resulting charge current differential will ensure that all batteries will converge to the same state of charge. If needed, several balancers can be paralleled. A 48V battery bank can be balanced with three Battery Balancers.

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Victron Energy Battery Balancer

Product ID: 45162675

Details

Brand
Victron Energy
Color
Red
Input Voltage
48 volts
Item Weight
247 g
Item dimensions L x W x H
4.7 x 10 x

⚡Draws up to 1A for charge equalization

🔋Balances dual 12V batteries

🔗Scalable for 24V to 48V systems

719724Fr

Duties & taxes included

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Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔋 Keep your power balanced, your system flawless, and your energy unstoppable!

MODULAR SCALABILITY - Parallel multiple balancers for 48V or larger battery banks
PLUG PLAY RELIABILITY - Compact, lightweight design with hassle-free installation
SMART VOLTAGE MONITORING - Activates above 27V to maintain perfect charge balance
OPTIMIZE BATTERY LIFESPAN - Eliminates load imbalance to extend your battery bank’s life
POWERFUL CURRENT EQUALIZATION - Draws up to 1 Amp to synchronize battery charge states

The Victron Energy Battery Balancer is a compact, efficient device designed to equalize the charge between two series-connected 12V batteries or multiple parallel strings. It activates when system voltage exceeds 27V, drawing up to 1 Amp from the higher voltage battery to ensure all batteries maintain the same state of charge. Scalable for 24V to 48V systems, it significantly improves battery bank longevity and performance, making it an essential upgrade for professional-grade energy setups.

Specifications

ASIN	B01DH6B2D2
Best Sellers Rank	#26,319 in Automotive ( See Top 100 in Automotive ) #40 in Battery Testers
Brand	Victron Energy
Built-In Media	Victron Battery Balancer
Color	Red
Customer Reviews	4.3 4.3 out of 5 stars (540)
Global Trade Identification Number	08719076020950
Input Voltage	48 volts
Item Dimensions	4.7 x 10 x 11.3 inches
Item Type Name	Victron Battery Balancer
Item Weight	247 g
Manufacturer	Victron Energy
Mfr Part Number	BBA000100100
Model Number	BBA000100100
Number of Items	1
Power Source	Battery Powered
Unit Count	1 Count
Warranty Description	Warranty

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