USB 3.7V Lithium Li-ion 18650 Battery Fast Charger Charging Board DIY Power Bank

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5V 2A USB 3.7V Lithium Li-ion 18650 Battery Fast Charger Charging Board DIY Power Bank
Product Description
Feature:
Used the PB0059E Imported main chip, high integration, synchronous boost&switching,
High efficiency.
1. 2.1A synchronous boost conversion, 2.1A synchronous switch charging
2. Boost efficiency up to 96% MAX
3. Charging efficiency up to 94% MAX
(it is chip theory efficiency, not equal to the final efficiency, but better than the normal charger module)
4. Constant voltage - constant current standard discharge curve
5. Turbulent-constant current-constant voltage standard charging curve
6. Adaptive charging current adjustment, matching various current adapters ◆ Charging voltage accuracy: 0.5%
7. Support 4.2/4.3/4.35V battery charing
8. The charging has OVP protection, the charging is turned off when it is over 6V, and the instantaneous withstand voltage is 10V.
9. Support battery capacity display
10. Press the button to power on, press and hold for 3 seconds to shut down, standby power consumption is less than 20uA
11. Load insertion automatically starts boosting, load removal automatically sleeps;
12. Power MOS built-in, single inductor for charging/discharging
13. Multiple protection: Output over-current, over-voltage, short-circuit protection; input over-voltage, over-charge, over-discharge, over-current discharge protection; typical application of over-temperature protection
14. Support charging and discharging at the same time
Parameter:
1, Input interface: Micro USB
2, Input voltage: DC5V ±0.3V
3, Input charging current; 2A max
4, charging mode: trickle,
constant current, constant voltage
6, output voltage is 5V
±0.3V Max 2A
B+， connect to Battery+
B-, connect to Battery-
With over discharging（about 3.2V） / over charging(about 4.2V)/ over current protection,
suitable for lithium li-ion 18650 battery DIY
Power bank, phone charger.
Notes:
the battery polarity should connect correctly, or will burn the board.
Package Included:
1pcs x Battery Charger Board
Payment
Delivery details
Terms of sales
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Payment
We only accept payment via
Paypal
.
The buyer is responsible for any applicable import duties and local taxes.
Usually there's no any charges for small parcel. But please verify with your customs before making your purchase.
Delivery details
The items will be shipped within
1~2
working days after your payment is received and cleared.(excluding Saturday, Sunday & Holiday)
All items will be shipped to your Paypal address, so please make sure to provide us with the correct, precise, detailed shipping address.
The Delivered time to USA buyer is about
7~20
days, other country about
15~35
days delivered.
Notes:
Please contact us in advance if you need faster trackable or express shipping service.
Terms of sales
All the items will be tested before shipping. Buy them with the confidence!
We maintain the excellent service standards
and strive for 100% customer satisfaction and
Positive feedback.
If you have any problem, please do feel free to contact us before leave Neutral
or Negative
feedback, so that we can satisfactorily address your concerns.
About us
We afford all cost if it's our fault. Exchange or refund.
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We strive to provide you with the best service, reply your question within 24 hours.
Business time:
9:30~21:30 (GMT+8)
exclude the weekend and holidays.
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