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bright grid of 105 charlieplexed LEDs
the button is not a general on/off for the entire pack
just pick one with more than 500mAh of capacity
You can even power the entire display from a USB port
4-wire SPI
Lithium Ion Battery - 3.7v 2000mAh serial bright grid of 105 charlieplexedThese batteries are intended for use in electronics projects by people knowledgeable in the use and chemistry of lithium ion batteries. Do not use these batteries to replace batteries found in consumer electronics. The polarity may not be the same, the connectors may not match. In addition, such batteries often use proprietary circuits for charging monitoring, and our batteries are not equipped with these protections. We will not warranty the use of