4. Specifications

In this section:

smallBMS with pre-alarm
Operating voltage (Vbat)	8 - 70Vdc
Power supply cable and fuse (not supplied)	Recommended fuse size 0.3A - 2.5A, dependent on devices connected to Load disconnect and pre-alarm output
Current consumption, remote on	2.2mA (excluding Load and Charge disconnect output current)
Current consumption, low cell voltage	1.2mA
Current consumption, remote off	1.2mA
Load disconnect output	Normally high (Vbat – 0.1V) Source current limit: 1A (not short circuit protected) Sink current: 0A (output free floating)
Charge disconnect output	Normally high (Vbat – 0.1V) Source current limit: 10mA (short circuit protected) Sink current: 0A (output free floating)
Pre-alarm output	Normally free floating (low) In case of alarm: output voltage Vbat -0.1V Max output current: 1A (not short circuit protected)
Remote on/off: Remote L and Remote H	Use modes: ON when the L and H terminal are interconnected ON when the L terminal is pulled to battery minus (V < 3.5V) ON when the H terminal is high (2.9V < 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	0.1kg
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

smallBMS with pre-alarm