12S 30A 44.4V 48V 50.4V Li-ion ion LiPo Li-Polymer BMS PCB For Li-ion Battery

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44.4V 48V 50.4V 30A 12S Li-ion ion LiPo Li-Polymer BMS PCB For 18650 Battery
Product Description
44V  48V  50.4V   30A
12S Lithium Battery Pack BMS for E-bike
12S
30A
lithium Lithium Battery
protection board
.
Applicable for
43V   (3.6V * 12S) lithium battery & packs
44V    (3.7V * 12S) lithium battery & packs
50.4V (4.2V * 12S) lithium battery & packs
Cylindrical Lithium battery (Li-ion)
Prismatic Lithium Polymer battery (Li-Po)
Technical P
arameters
:
Balanced
current
: 60mA (VCELL = 4.20V
when
)
Balanced
for
: 4.20 ± 0.05 V
Over-charged
Protection
: 4.20 ± 0.05 V
Over-charged
delay
: 55mS
Over-charged
release
: 4.05 ± 0.05 V
Over-discharged
threshold
: 2.90 ± 0.05 V
Over-discharged
delay
: 5mS
Over-current
Protecton
: 30 A
Max Continuing discharge Current : 30A
Max Charge Current : 30A
Static power consumption
:
less than
200uA
Short-circuit protection
function
:
disconnect the load
from the
recovery
.
Size: 129
mm * 53mm
The
main functions:
Over-charged
,
O
ver-
discharged protection
,
short circuit protection
,
over-current protection
,
with
Balancing function
.
The board have balancing function. So you may see a balance connector with 12 wires, below chart shows how to connect the wires onto 12 batteries to realize balancing and protection.
The Positive output on Battery Pack (48V + )could connecting to charger positive pole (charger +)
Battery Pack (48V - ) connecting with B- on board
Chip board P- connecting to Charger Negative Pole (charger -)
Chip board P- could be Negative output for charger, motor, controller
Battery B+ could be Positive output for charger, motor, controller
1,  The charging port and the discharge port of the board are the same Positive port.
“B-“
for negative Pole of the battery pack,
“P-“
is negative pole for both discharging and charging.
2,
“B-“
,
“N-“
,
“P-“
welding pad are through-hole port, hole diameter of 3.5 mm;
You could use solder iron to weld the wires through the hole port
Every charging port for battery are the DC needle seat forms output.
“N-“
with no wiring when charging and discharging are in the same port;
3,  First connect the
“P-“
,
“B-“
to the battery pack, then re-check with the battery voltages,
Then connect the 7 wires onto the batteries,
Do not connect in wrong ordering, or it will burn out the board.
If you made wrong connection and reverse the board that will cause smoke, please check with every wire to be sure you are doing correct connection.
check all the wires voltage with orderly, start from
B-
, and see if it
increasing from 3.6V / 3.7V
, like:
( wires with voltage )
1      -  2     -   3       -     4     -    5   -   6    -   7   -   8    -   9   -  10   -  11   -  12
3.7V - 7.4V - 11.1V -  14.8V - 18V - 22V - 25V - 29V - 33V - 36V - 40V - 44V
Check every voltage on the wire step by step before plug in the connector.  C
heck every wire and see if the orderly are correct.
Because if any of the wire get a wrong order, it will get burnt. Smoke shows board already get burnt for protecting the battery being damage by wrong connection
,
For DIY assembling. Please make sure you are capable to do the assembling before ordering! I
f you dont know how to do the connection,
DONT ORDER IT!
IMPORTANT!!!
The BMS only use for
new and consistent high drain batteries.
Do not use for battery packs that mix with new & half-used, or mix with different brand battery cells.
Do not use for used and
imbalance
battery cells.
Do not use for batteries with
fake capacity
.
Battery not including, the auction is for BMS only.
Payment
Delivery details
Terms of sales
Returns
Contact us
Payment
●
We only accept payment via
PayPal
.
● All major credit cards are accepted through secure payment processor PayPal.
Delivery details
● Items will be shipped within 1~2 business day after payment received.
● Items are shipped from China by Airmail,
delivery time depends on destination and other factors, normally delivery to USA need
7~18 days
,
reach most of the countries within
10~35 business days
. But to Brazil or Africa, it need
35~65days
.
Terms of sales
● All the items will be tested before shipping. Buy them with the confidence!
●
We maintain hightest buyer ratings
and 100% customer satisfaction,
Positive Feedback will be much appreciated from you.
● Any dissatisfaction or problem, please contact us before you
leave neutral
or negative
feedback.
Returns
● For defect or wrong items , please you contact us, We will fully refund or send you a new replacement.
● If you not satisfied with our items, pease contact within 3 days, we will fully refund after get your returned goods.
Contact us
● If have any question, Please contact us by ebay message before leaving neutral, negative feedback or open any dispute, we will reply within 24 hours, ensure that help you solve the problem, make you satisfied.
● Business time From
9:30 AM to 21:30 PM(GMT+08)
.
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