Victron Energy Battery Balancer

Victron Energy BBA000100100 Battery Balancer

On sale ~~$57.00~~ $48.45

For 24 volt and upward battery banks. Multiple balancers needed for higher voltages. The battery balancer ensures the charge is distributed evenly between individual batteries of a larger bank

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p/n: BBA000100100

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Now with 5 year manufacturers warranty.The Battery Balancer equalizes the state of charge of two series connected 12 V batteries, or of several parallel strings of series connected batteries. When the charge voltage of a 24 V battery system increases to more than 27 V, 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 1 A 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 36 V battery bank can be balanced with two Battery Balancers and a 48 V battery bank can be balanced with three Battery Balancers

Victron Energy have made an APP to demonstrate the process

Q: I have,a Rolls Surrette 24 volt battery bank comprised of twelve 2 volt batteries. Would this device help balance the voltage differences between the cells? Will it help reduce sulfation?

Asked by: Jim Juczak - 9/4/2016

A: Interesting question! Its designed to work with batteries of 12 volts, so it would work to equalize the voltage between the two halves of your 24 volt bank, but it wouldn't work at an individual cell level to equalize two adjacent cells. Your question is particularly interesting because Lithium Ion batteries do have this kind of management system at a cell level but the battery management system is more sophisticated, so maybe in future someone will come up with one that is more universal and could be used in your case.

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Answer provided by: Peter Kennedy (9/4/2016)

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Q: I have 4 12v 240 aH batterier, seriel connected to 24Vdc and then parallel conected to 500 aH. How many units would I need and How would the wiring be?

Asked by: David - 12/6/2018

A: You need one balancer per pair of batteries in series. For 12 volt batteries in series to make 24 volts you need one balancer.

If you add multiple strings in parallel to the first string you still only need one balancer provided that you wire the bank as shown in the instruction manual.

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Answer provided by: Peter Kennedy (12/7/2018)

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Victron Battery Balancer
Input voltage range	Up to 18 V per battery, 36 V total
Turn on level	27,3 V +/- 1%
Turn off level	26,6V +/- 1%
Current draw when off	0,7 mA
Midpoint deviation to start balancing	50 mV
Maximum balancing current	0,7 A (when deviation > 100 mV)
Alarm trigger level	200 mV
Alarm reset level	140 mV
Alarm relay	60 V / 1 A normally open
Alarm relay reset	Two terminals to connect a push button
Over temperature protection	yes
Operating temperature	-30 t0 +50 øC
Humidity (non condensing)	95%
Enclosure
Colour	Blue (RAL 5012)
Connection terminals	Screw terminals 6 mmý / AWG10
Protection category	IP22
Weight	0,4 kg
Dimensions (h x w x d)	100 x 113 x 47 mm
Standards
Safety	EN 60950
Emission	EN 61000-6-3, EN 55014-1
Immunity	EN 61000-6-2, EN61000-6-1, EN 55014-2
Automotive Directive	EN 50498

Victron Energy BBA000100100 Battery Balancer

Q: I have,a Rolls Surrette 24 volt battery bank comprised of twelve 2 volt batteries. Would this device help balance the voltage differences between the cells? Will it help reduce sulfation?

Q: I have 4 12v 240 aH batterier, seriel connected to 24Vdc and then parallel conected to 500 aH. How many units would I need and How would the wiring be?

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