This is a 2 in 1 buck and boost converter module. This module works perfectly for DIY a power bank. The output voltage is fixed in 5 VDC. In addition, there are two USB output options, specifically 1 A and 2.1 A.
Note 1: Input the voltage on micro USB header while output on the USB type-A female header. The board came with 4 LEDs battery level indicatory. Auto turns off and on features available.
Note 2: To achieve maximum throughput, you are advised to use 2 to 6 cells 18650 battery connected in parallel.
Note 3: Do not connect dry cell, SLA, 1.2 V rechargeable battery, manganese cell, 3.2 V lithium-ion battery. Failed to do so might cause fatal, we do not responsible for the cause.
Note 4: Reverse battery polarity results in damaging the board. Proceed with caution. Battery type and model cannot be mixed together.
1 x DC-DC buck and boost converter (DIY power bank, 2.1 A output)
Last Updated @ 10/27/2019 6:10:12 PM
Most of the product pin is unsoldered. Soldering service is provided by dropping us a message upon order is made. The soldering service is Free of charge.
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Term and condition:
A) convert to cash voucher for next purchase
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A) item broken after delivery
B) non-human damage
C) bad connection
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