•  
  • Describe：
  • 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.
  •  

    • Battery Active Equalizer 3S-17S 1.2A 3.7V 3.6V 3.2V Li-ion LiFePo4 Balancer

     

    Describe：

    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

     


    Item Specifics
    Brand :Unbranded
    Type :balancer
    Chemical Composition :Lithium
    Country/Region of Manufacture :China

    Payment

    PayPal is easy and safe, and we only accept payment via PayPal

    All Auction items must be prepaid in full

    eCheck payment take 3-7 days to clear through Paypal

    We ship items to your PayPal confirmed address only. Please make sure your address in PayPal is matched with your shipping address before you pay.

    Shipping

    All items will be dispatched within 1 business day after receipt of payment. Please notice that orders placed on weekends and public holidays will be dispatched on the next working day.

    We ship the package to your confirmed shipping address in PayPal. Please tell us your shipping address in time if it is different from the one in PayPal.

    Please check your shipping address carefully before checkout. Please don't use non-standard abbreviations. We are not responsible for any wrong or undeliverable addresses. Please verify and update your shipping address on PayPal during checkout.

    If you have not received your shipment within 60 days from payment, please contact us ,we will follow up your item until you receive it

    Returns

    We back our products with a 60-DAY Return GUARANTEE. Customers should inspect item(s) and notify us within 60 days of any problems.

    If you have a problem with your item, please contact us before leaving feedback. All items being returned must be issued an RMA number (Return Merchandise Authorization Number).BEFORE they are returned.

    RMA number should be written on the outside shipping box or on the return label. The RMA number must not be written on the manufacturer's product box.

    12 months Warranty from the date of purchase covering manufacturing defects. This warranty excludes any damage caused by the user.

    Return shipping is to be paid by the Buyer.

    Contact Us

    We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including Consumer Electronics, Home & Garden, Health & Beauty, Apple accessories, Computers accessories, Car accessories, Clothing accessories, Sports & Outdoor Accessories.

    Our principle: offer high quality product to worldwide at reasonable prices. Customers 100% satisfaction is our top priority

    Feedback

    We are honest seller on ebay to afford the 100% Satisfactied service. With professional customer service and impeccable storage logistics, we will make you feel just in super market.

    If you are not satisfied with our items or service, please give us the opportunity to resolve a problem. If no response within 1 work day, please check the spam in your mail box or contact us again via eBay. we will always try our best for 100% customer satisfaction.

    Business hours of operation:

    • Monday - Friday: 9:00 AM - 6:00 PM Standard Beijing Time.
    • Saturday, Sunday and all Public Holidays: Closed.

     

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    Battery Active Equalizer 3S-17S 1.2A 3.7V 3.6V 3.2V Li-ion LiFePo4 Balancer

     

    Describe：

    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

     

    Item Specifics
    Brand :Unbranded
    Type :balancer
    Chemical Composition :Lithium
    Country/Region of Manufacture :China


    PayPal is easy and safe, and we only accept payment via PayPal

    All Auction items must be prepaid in full

    eCheck payment take 3-7 days to clear through Paypal

    We ship items to your PayPal confirmed address only. Please make sure your address in PayPal is matched with your shipping address before you pay.

    All items will be dispatched within 1 business day after receipt of payment. Please notice that orders placed on weekends and public holidays will be dispatched on the next working day.

    We ship the package to your confirmed shipping address in PayPal. Please tell us your shipping address in time if it is different from the one in PayPal.

    Please check your shipping address carefully before checkout. Please don't use non-standard abbreviations. We are not responsible for any wrong or undeliverable addresses. Please verify and update your shipping address on PayPal during checkout.

    If you have not received your shipment within 60 days from payment, please contact us ,we will follow up your item until you receive it

    We back our products with a 60-DAY Return GUARANTEE. Customers should inspect item(s) and notify us within 60 days of any problems.

    If you have a problem with your item, please contact us before leaving feedback. All items being returned must be issued an RMA number (Return Merchandise Authorization Number).BEFORE they are returned.

    RMA number should be written on the outside shipping box or on the return label. The RMA number must not be written on the manufacturer's product box.

    12 months Warranty from the date of purchase covering manufacturing defects. This warranty excludes any damage caused by the user.

    Return shipping is to be paid by the Buyer.

    We are a professional worldwide wholesale company, with our own factory located in China. We supply many products including Consumer Electronics, Home & Garden, Health & Beauty, Apple accessories, Computers accessories, Car accessories, Clothing accessories, Sports & Outdoor Accessories.

    Our principle: offer high quality product to worldwide at reasonable prices. Customers 100% satisfaction is our top priority

    We are honest seller on ebay to afford the 100% Satisfactied service. With professional customer service and impeccable storage logistics, we will make you feel just in super market.

    If you are not satisfied with our items or service, please give us the opportunity to resolve a problem. If no response within 1 work day, please check the spam in your mail box or contact us again via eBay. we will always try our best for 100% customer satisfaction.

    Business hours of operation:

    • Monday - Friday: 9:00 AM - 6:00 PM Standard Beijing Time.
    • Saturday, Sunday and all Public Holidays: Closed.

     


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