Description
Item specifics
Brand Name: Heltec Automation
Compatibility: Others
Model Number: 4S 40A
Voltage: 16.8-18.1V
Continuous charge current (upper limit): 40A
Board Size: 46*60*3.4mm
Product Description
Note:
Yanwen Economic Air Mail way the track number we supply only shows the track in china, when the parcel leave china there is no track anymore, but you can use this track number to contact Customer service to check , or just email to us, we will check for you .
Yanwen Economic Air Mail is a very cheap way , So it may take 40-60days , when you choose the way ,pls accept the long term . Hope you can understand. Thanks!
if you meet any problem on the BMS board,Pls download the instructon first :http://pan.baidu.com/s/1XnW_P4RACjWhG5VbTNgStA
it may solve your problem.
Now this 4S 40A balance version has upgrade to new !
1, increased anti-interference function,
2, reduce the large current heat by 30%,
3, starting power increased from 135W to 220W (4S40A)
Integrated 10 low load resistance MOS tube, continuous discharge 40A, 100mA balanced current, for electric drill/sprayer/ LED lights/low power inverter.
4S 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
Charging voltage: 16.8V – 18.1V
Continuous charge current (upper limit): 20A
Board Size: 46*60*3.4mm
Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)
Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
Note:this item is Balanced version .If you need other Version,please contact us.The 2 version price is different
Standard version: for starting current below 60A, power 100W below the drill.(Not balanced function)
Balanced version: suitable for starting current below 80A, power 135W below the drill.(with balance)
Note 1: The successful start of the electric drill requires four 15C-20C power batteries, or eight 10C-15C power batteries (ordinary 18650 can not start drill! ! !).
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V, and 16.8V in strict accordance with the diagram. Do not intentionally short circuit.
Note 3: When the battery is charged, “430” resistance heating is a normal phenomenon, indicating that the equalizing circuit is working; if the “430” resistance is also heating in the state of not charging, please check whether the wrong line is connected.
Note 4: 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The The Discharge test, the voltage faster battery that group is poor battery.
Package:
1* 4S 4A Balance Version Protection Board
Packaging Details
Unit Type: piece
Package Weight: 0.03kg (0.07lb.)
Package Size: 5cm x 3cm x 4cm (1.97in x 1.18in x 1.57in)
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