SUGGESTED POWER PACK CONNECTION: 
KAB-BE power equirements were tested to find that 19V power source with a high available current rating and inbuilt over-current protection was required to charge these large capacity Li-Ion cells. 
Note: Testing here found that some power supply solutions were not compatible with the KAB-BE charging circuit and/or the circuits built inside some Li-Ion cells. In particular we found charging power demands were quite high and that lower current power supplies caused protection circuit issues. 
 
CONSTRUCTION: 
Solder the MTB832 to the available solder terminals on the KAB-BE board 
Connect the DCL2119ST to the MTB832 observing polarity as indicated on the board: Red lead to positive, black to negative. 
Insert the three 18650 Li-Ion batteries (Supplied separately) 
Note: Battery insertion, depending on the cell, can be a bit tight. You may need to first adjust the height of the terminals to accept the RBLI series of cells as sold by WES. 
Connect the KAB-BE with the supplied header lead to the amplifier board as per the instructions supplied with KAB-230 or KAB-250. 
Adjust the SMP90W power supply voltage setting to 19V as recommended. 
Attach the 2.1mm DC plug option to the SMP90W and insert into DCL2119ST. 
You should now have a functioning power supply set-up. Status LEDs will light. 
This will both charge the batteries and also power the unit to around 40W total. 
Simply disconnect the SMP90W for battery operation, reconnect for recharging. 
 
DISCLAIMER: 
Other voltages and supplies can be used at the users discretion. 
Alternative setups are beyond the scope of this sheet and are at the risk of the user. 
This is to be used as general guide only in response to some testing here at WES. 
This is by no means a comprehensive data set of available options for the KAB-BE as the constructor may connect various power options as they see fit, and as such, WES can not be held resposible for the users choice, circumstances or abilies. 
We strongly suggest further research when constructing your project. A good source of information is the PartsExpress website as it has a users Q&A: 
https://www.parts-express.com/Search.aspx?keyword=KAB-BE

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