Flying this pack on a 3DR Solo requires a BMSOne (sold separately) to show correct voltage, current and % remaining which are used by the Solo as Safety Features to safely Return To Home (RTL). It also requires a strap to secure it to Solo (sold separately).
4S3P 14.4V 10,500mAh Li-Ion pack
Cells are Sanyo 18650GA, 3500mAh capacity, 10A discharge each.
4S3P: 4S = 4 x 3.7V = 14.8V, 3P = 3 x 10A = 30A
The connectors are XT-60 and 4S balance plug for charging with a standard lipo/li-ion charger. A custom balancing adapter (sold separately) will soon be available to allow charging with a stock Solo charger (sold separately). It can also be charged using the BMSOne as an adapter for the Solo charger but it does not balance charge. Care must be taken that the charger port is never plugged into the BMSOne in reverse polarity as this will cause permanent damage to the BMSOne.
The pack can be used in other applications where these specs are sufficient.
Link the the BMSone tutorial (always updated): https://bit.ly/37QRJHm
Custom BMSone profile for safe Li-Ion uses:
SP0, 8, 15, 23, 31, 38, 46, 53, 61, 69, 76, 84, 91, 99, 100
SV12, 12.2, 12.4, 12.6, 12.9, 13.1, 13.3, 13.5, 13.7, 13.9, 14.2, 14.4, 14.6, 14.8, 16.8
BATT_ARM_VOLT to 14,400 to avoid the possibility to take off on a discharged battery or on landing recovery voltage (84%).
BATT_LOW_VOLT to 12,5000 (equals 19%). I recommend 12,5000 to have enough room for a safe RTL.
BATT_CRT_VOLT to 12,2000 (equals 8%).
BATT_LOW_TIMER to 2. This makes the RTL process happens 2 seconds after the battery reached 12.5V (19%).
BATT_FS_LOW_ACT and BATT_FS_CRT_ACT should be set to 3 (Smart RTL). In case the Smart RTL buffer becomes full, it’ll automatically switch to regular RTL.