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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Battery Balancer

Product ID: 253962841

Details

Brand
Victron Energy
Colour
Red
Input voltage
48 Volts
Item dimensions L x W x H
11.9 x 25.4 x
Item weight
247 Grams

⚡Equalizes charge across series/parallel batteries

📈Extends battery lifespan

🔋Balances 48V battery banks

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Description

🔋 Keep your power bank balanced, charged, and unstoppable!

SEAMLESS MONITORING - Compatible with BMV-702 for advanced battery insights
INTEGRATED ALARM SYSTEM - Normally open relay signals imbalance with LED alert
OPTIMIZE BATTERY HEALTH - Eliminates load imbalance to maximize battery life
SCALABLE POWER MANAGEMENT - Use up to three balancers for 48V systems
SMART CHARGE EQUALIZATION - Balances two 12V batteries or multiple parallel strings

The Victron Energy Battery Balancer is a precision device designed to equalize the state of charge in series and parallel connected 12V batteries, preventing premature battery bank failure caused by load imbalances. Ideal for 48V systems using up to three balancers, it features an alarm relay for real-time alerts and integrates with the BMV-702 Battery Monitor for enhanced control and monitoring.

Specifications

ASIN	B01DH6B2D2
Best Sellers Rank	#88,603 in Automotive ( See Top 100 in Automotive ) #149 in Power Inverters
Brand	Victron Energy
Color	Red
Customer Reviews	4.4 4.4 out of 5 stars (542)
Global Trade Identification Number	08719076020950
Input Voltage	48 Volts
Item Dimensions	11.9 x 25.4 x 28.7 centimeters
Item Weight	247 Grams
Manufacturer	Victron Energy
Mfr Part Number	BBA000100100
Model Number	BBA000100100
Number of Items	1
Number of Packs	1
Output Voltage	48 Volts (DC)
Unit Count	1 Count

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Sold byAmazon Cape VerdeDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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