6. Specifications

In this section:

smallBMS NG
Operating voltage (Vbat)	8 - 70 Vdc
Power supply cable and fuse (not supplied)	Recommended fuse size 0.3 A - 2.5 A, dependent on devices connected to Load disconnect and pre-alarm output
Current consumption, remote on	3mA (excluding Load and Charge disconnect output current)
Current consumption, low cell voltage	1.2 mA
Current consumption, remote off	1.2 mA
Load disconnect output	Normally high (Vbat – 0.1 V) Source max current: 1 A (not short circuit protected) Sink current: 0 A (output free-floating)
Charge disconnect output	Normally high (Vbat – 0.1 V) Source max current: 500 mA (not short circuit protected) Sink current: 0 A (output free-floating)
Pre-alarm output	Normally free-floating (low) In case of alarm: output voltage Vbat -0.1 V Max output current: 500 mA (not short circuit protected)
Remote on/off: Remote L and Remote H	Use modes: ON when the L and H terminals are interconnected ON when the L terminal is pulled to battery minus (V < 3.5 V) ON when the H terminal is high (2.9 V < VH < Vbat) OFF in all other conditions
GENERAL
Operating temperature range	-20 °C to +50 °C (0 - 120 °F)
Humidity	Max 95 % (non-condensing)
Protection, electronics	IP20
ENCLOSURE
Weight	0.1 kg
Dimensions (hxwxd)	106 x 42 x 23 mm
Material and colour	ABS, matt black
STANDARDS
Safety	EN 60950
Emission	EN 61000-6-3, EN 55014-1
Immunity	EN 61000-6-2, EN 61000-6-1, EN 55014-2
Automotive Directive	Regulation UN/ECE-R10 Rev.4 - pending

smallBMS NG