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Description

Even when building a battery pack with identical and well matched cells, the
individual state-of-charge of a long string of cells will diverge over time and charge cycling. This is due to small variations in cell
characteristics and localised operating conditions, which can lead to
small differences in self-discharge and load current.

Equalising
or balancing a multi-cell pack helps to maximize capacity and service
life of the pack by working to maintain equivalent state-of-charge of
every cell, to the degree possible given their different capacities,
over the widest possible range. Equalising is only necessary for packs
that contain more than one cell in series. Parallel cells will naturally
equalise since they are directly connected to each other, but groups of
parallel wired cells, wired in series (parallel-series wiring) must be
equalised between cell groups.

Passive equalisation

With passive equalisation, energy is drawn from the most charged cell and dissipated as heat, usually through resistors.

This equalises the state of charge at some fixed point – usually either "top
balanced", with all cells reaching 100% SOC at the same time; or
"bottom balanced", with all cells reaching minimum SOC at the same time.
This can be accomplished by bleeding energy from the cells with higher
state of charge (e.g., a controlled short through a resistor or transistor), or shunting energy through a path in parallel with a cell
during the charge cycle so that less of the (typically regulated
constant) current is consumed by the cell. Passive equalisation is
inherently wasteful, with some of the pack's energy spent as heat for
the sake of equalising the state of charge between cells. The build-up
of waste heat may also limit the rate at which equalisation can occur.

Active equalisation：

With active equalisation, energy is drawn from the most charged cell and
transferred to the least charged cells, usually through capacitor-based,
inductor-based or DC-DC converters. Active balancing attempts to
redistribute energy from cells at full charge to those with a lower state of charge. Energy can be bled from a cell at higher SOC by
switching a reservoir capacitor in-circuit with the cell, then
disconnecting the capacitor and reconnecting it to a cell with lower
SOC, or through a DC-to-DC converter connected across the entire pack.
Due to inefficiencies, some energy is still wasted as heat, but not to
the same degree.

Principle of equalisation:

This module uses adjacent differential voltage equalisation through DC-to-DC
converters. When the adjacent battery voltage difference reaches 0.1V
or more, the internal trigger equalisation work is performed until the adjacent battery voltage difference is within 0.03V. There is adjacent
voltage equalisation both when charging and discharging on the battery
pack.

Features:

High-precision energy transfer equalisation;

Exclusive equalization IC;

High current 1.2A energy transfer;

Constantly equalises the battery voltages;

Improves the overall battery pack efficiency;

Reduced battery maintenance costs.

Parameters:

Operating voltage range: 2.0V-4.5V.

Universal; suitable for LiPo, Li-Ion, LiFePO4 and LTO batteries.

Equalisation current: Adjacent voltage difference is 0.1V, the equalisation current is about 0.5-0.7A;

Adjacent voltage difference is above 0.2V, the maximum equalization current is 1.2A;

The smaller the differential voltage, the smaller the equalisation current.

For larger battery packs the modules can be daisy chained together.

Connection definition:

BC-Connect the first string of the positive pole of the battery pack

BC2 connects the second string of the positive pole of the battery pack

BC3 connects the third string of the positive pole of

The battery pack.

BC4 connects the fourth string of the positive pole of

The battery pack.

BC5 connects the fifth string of the positive pole of

The battery pack.

BC6 connects the sixth string of the positive pole of

The battery pack.

BC7 connects the seventh string of the positive pole of

The battery pack.

BC8 connects the eighth string of the positive pole of

The battery pack.

BC9 connects the 9th string of positive pole of

The battery pack.

BC10 connects the tenth string of the positive pole of

The battery pack.

The total positive pole of the battery pack

Note：

The LED is on to indicate that the corresponding two batteries are being balanced.

The LED is off, it means that the equalisation has been completed, or the
voltage difference has not reached the starting conditions,

If
the LED is flashing, it means that the equalisation has failed to
start, either the cells are not close enough in specifications or there
is a wiring fault.

Packing List:

1x 1.2A LED Active Equaliser (choose the number of cells above)

1x Balancing cable

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About Shipping:

Every item is checked carefully before shipping.
If you need a huge quantity, contact us to get more competitive offer.
We usually ship within 1 Business day of received/cleared payments.
In case of you do not provide a physical and valid address, we will only ship the package after you confirmed the address.
Please understand that once orders are shipped, we cannot control the transit times thereafter.
30 days return accpted

ESTIMATED DELIVERY TIME

- Economy: 15-50 days

- Standard: 10-35 days

- Expedited: 4-7 days

Service Level	Destination	Provider	Shipping Period
			--Normally--
Standard Int'l Flat Rate Shipping	United Kingdom	Royal Mail / Yodel Logistic	6-12 Working Days
			( 8-18 days )
	United States	USPS ePacket Service	6-15 Working Days
			( 8-21 days )
	Germany	DHL eCommerce Service	6-15 Working Days
			(8-21 days )
	Switzerland,Spain,France	DHL eCommerce Service	10-25 Working Days
			( 14-35 days )
	Australia,Canada,Netherlands,	China EMS ePacket	10-25 Working Days
			( 14-35 days )
	Russia	China EMS ePacket	10-30 Working Days
			(14-40 days )
	Brazil	China EMS ePacket	15-60 Working Days
			(19-70 days )
	Asia and Other Countries	China Post Air Mail(CPAM)	8-28 Working Days
			( 12-39 days)

Contact us:

Please contact us for any question or problem that you may have

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