Product Overview
D1524 Machine Tutorial Video
D1524 Lithium Battery Pack Equalizer & Analyzer
Features and advantages
- Max. equalized current up to 15A.
- Dual use in a machine——detector/equalizer.
- Li-ion /LiFePO4/LTO battery selection function for easy use.
- This machine boasts three equalization modes,allowing for personalized adjustments to equalizing parameters and optimizing the operation.
- It can be controlled through a 5-inch high-definition touch screen or a bluetooth
connection app on your phone,which allows for real-time viewing of equalized data.
Parameters
Product model: D1524
Supply voltage：AC 110V~220V
Applicable number of batteries：2-24S
Number of strings to start charging mode：10-24 strings
Max equalized current ：15A(model selection)
Applicable battery type: Li-ion/LiFePO4//LTO battery
Packing List：
D1524 Machine*1set
A power cord*1
Connecting terminal wires*1
D1524 flat cable (with clips)*1
Cable adapter board*1
Instruction manual*1
Why do battery pack need to be balanced?
1.The battery pack has been charged and discharged many times, the electrolyte inside the battery is depleted and the activity of the internal chemical substances is reduced.The internal resistance of the battery will increase to varying degrees.
2.The greater the difference in internal resistance, the greater the voltage difference between the batteries in the battery pack will be if used for a long time. This will shorten the charging time and prevent the battery from being fully charged, it will affect the mileage and lifespan.
3.If the voltage difference is greater than 0.5V will be power failure at start-up, short charging and use time, so battery equalizer is used to balance it.
Which situation need to use balance board for battery pack balance?
The electric bike lose power from starts up and charging and use time are short. First, the voltage of battery pack’s each series need to be checked. The equalizer could be used to balance if the difference of voltage is over than 0.3V. Second, the resistance of battery pack also be checked. The bigger difference of internal resistance is, the bigger difference of voltage. The big resistance of battery use electricity more. This situation is easy to disconnect power source.
Which situation does not need to use equalizer for battery pack balance?
1.It is long time not to start electric bike. The battery pack is in insufficient voltage. in this situation, the battery pack cannot be activated or restored by balance device and need to be used the specific charging machine to activate.
2.If the battery damage,there is no voltage, the corresponding battery should be replaced in a timely manner before voltage balance repair.
Equalizer repairable battery:The battery is normal charging & discharging. There is no damage battery or insufficient voltage. The voltage of each series battery is the same. The balancer cannot repair the damaged battery.
Precautions for using equalizer
- Important reminder:
① Please choose a equalization mode that matches the battery type or corresponds to the voltage setting when setting parameters,otherwise the responsibility for damaging the battery module will be borne by the user！(2.8V for ternary lithium battery; 2.5V for Lithium iron phosphate battery).
② Make sure the wiring sequence is correct before plugging in the terminal.
③ It is necessary to pay attention to the battery polarity and sequence meet the requirements of the equalizer import terminal.Wrong wiring sequence will damage the equalizer! In severe cases, it may cause internal discharge components to burn.
④ For battery modules with a capacity less than 10AH,it is required to set the equalized current to be less than 10A,based on the safety and equalized accuracy of the battery module.
⑤ When equalizing the battery module,the equalizer must be placed in a ventilated environment because of the large amount of thermal energy generated due to energy consumption equalization.It is strictly prohibited to insert foreign objects or metal objects in the heat dissipation area behind the equalizer, otherwise it will damage the equalizer and causing danger.
⑥ When using the charge → discharge equalization mode, must pay attention to the charger output polarity and voltage are consistent with the equalizer. Wrong charging polarity will damage the instrument and may cause damage to the charger.
⑦ When using the charge → discharge equalization mode, must pay attention to the charger output polarity and voltage are consistent with the equalizer. Wrong charging polarity will damage the instrument and may cause damage to the charger.
⑧ It is necessary to use the battery pack connection cable that is randomly matched with the equalizer.It is prohibited to extend or modify the connection cable,otherwise the user will be responsible for any accidents caused.
⑨ There are complex high-voltage circuits and components inside the equalizer, and it is strictly prohibited to disassemble or modify them. Otherwise, if any accidents occur ,the user will be responsible;
⑩ The interior of the equalizer is composed of precision electrical components.Be careful not enter water or water mist,otherwise it will cause damage to the equalizer;
- Using reminder:
① The equalization effect and time is related to the equilibrium speed,the faster the speed, the poor balance effect.Suggest setting a smaller balance current to improve balance accuracy.
② The equalizing current marked on the equalizer is the discharge current when the battery is 4.2V (ternary lithium battery). The equalizer is designed for constant resistance discharge energy consumption. When the battery voltage decreases or it is a low voltage, the equalizing current will decreases.(D2524/2532 is 168mΩ constant resistance discharge load)
③ When it is necessary to measure the equalized real-time current, the instrument should be set to the A/MAX function mode, which is a continuous current state. in this state, the DC clamp meter can measure the zero voltage line or maximum voltage line of the battery module to obtain data. (Equalizers without A/MAX function are all pulse current during operation, and ordinary current measuring instruments cannot measure the actual current value). Press the A/MAX key on the control panel,switch to continuous discharge current mode,in this state,use DC clamp meter to measure the real-time discharge current (measure the zero voltage line or maximum voltage line of the battery module).If not press the A/MAX key,the balance mode is pulse discharge.Unable to measure the current with DC clamp meter at this time.
④ Because the battery is an electrochemical reaction element, it has the phenomenon of electromotive force (voltage) rise. When the battery unit experiences energy consumption discharge and the amplified current discharge ends, the battery end voltage will increase by a certain amount after disconnecting the load.(For example, after the mobile phone notifies that the battery is low and automatically shuts down, it can be turned on again after a few minutes and a small amount of battery will be displayed),in this case, the user may mistakenly think that the equalization effect is poor. Therefore, it is suggest using a low discharge current to balance the battery pack to achieve better effect.
⑤ All the equalizer cannot balance and repair on damaged battery packs, including below situations：
1）The internal resistance of the battery is too high.
2）The voltage is lower than the limit voltage.
3）Short circuit or open circuit inside the battery.
4）Damaged protection board of the battery pack.
⑥ Read the user manual of the instrument in detail. If have any questions, please contact the manufacturer's customer service hotline immediately.
