Tesla 5.3 kWh Battery Module Monitoring Board - Part 2

Previously (this blog 12/8/2016) the Tesla Battery Module Monitoring Boards were described and later an interface board (this blog 5/15/2017) that allows Tesla batteries to be connected to an Orion battery management system. Jaroslav Alexa in the Slovak Republic ( jaroslav.alexa@gmail.com  ) made contact and he is working on a 1993 Opel Calibra .  He plans to maintain the 2.0i gas engine in the front but add an AC75 with Curtis controller that is powered with 4 Tesla batteries in the rear.  To interface the batteries he ordered 4 of the EVBimmer battery interface boards. Picture JA214814 showing that the top of Jaroslav' board which appears to be equivalent to the boards previously examined (this blog 12/8/2016). Jaroslav's Tesla battery board has the following markings: PCBA, BMB, WIRE-CLP  (perhaps Printed Circuit Board Assembly, Battery Management Board) 1014183-00-0  Rev 0 2113C50004242  (perhaps 21st week of 2013) Our Tesla battery boards have the following markings: PCBA (1020796) 1021749-00-B Rev 03 0313KD0001147  (perhaps 3rd week of 2013) Although the front face of the Tesla battery board appears to be identical to the boards that we have worked with, and it appears that both boards were manufactured at about the same time, the circuit board back side is different in that the sensor wires are directly soldered to the PC board without using any sockets.  (Pictures JA205319 and JA212739).     Picture JA205319 showing the back side of Jaroslav's board while it was being removed from the battery module. Picture JA212739 showing what appears to be the same J1 inter battery connector (lower left with 2 green dots) but the other jumpers are all soldered directly to the PC board.       Picture JA215550 side view of  J4 (right) J3 (right top) and J5 (left center).   All connections were soldered to place.   If the white plastic connectors on the EVBimmer interface board are removed it is then  possible to directly solder the sensor wires to the board. Picture JA212242 showing the connections after Jaroslav finished soldering the wires to the back side of the EVBimmer board.  He was able to make the new connections without removing the sockets on the front side of the board.  The wire leads from the Tesla module are not very long and a white wire was used to extend the length of the Tesla Orange wire. Alternatively the sensor wires can be attached to the corresponding plastic connectors that would then permit direct connection to the EVBimmer board. The surface mount connectors (male) used on the EVBimmer interface board are parts numbered S15B-PASK-2 (LF)(SN) and S04B-PASK-2 (LF)(SN).  Both can be ordered directly from JST in Japan.   As of this writing the S04B can also be obtained from DigiKey.com  . The corresponding mating connectors (female) that would then attach to the EVBimmer board's connector include the housings (parts numbered PAP-15V-S and PAP-04V-S) and the pins (part number SPHD-002T-P0.5 ).  All of these parts are available from DigiKey.com  .  To attach the pins to the sensor wires requires a micro crimper and an Engineer PA-09 Micro Connector Crimper can be used.  The crimper is available for $38 from Amazon.com and can be found here: https://www.amazon.com/Engineer-PA-09-Micro-Connector-Crimpers/dp/B002AVVO7K/ref=sr_1_1?ie=UTF8&qid=1517513466&sr=8-1&keywords=pa-09