Datasheet

77
Victron Energy B.V. | De Paal 35 | 1351 JG Almere | The Netherlands
General phone: [phone] | Fax: [phone]
E-mail: [e-mail] | www.victronenergy.com
A 12V BMS that protects the alternator (and wiring), and supplies up to 200A in any DC load (including inverters and
inverter/chargers)
Alternator/battery charger input (Power Port AB)
1. The first function of Power Port AB is to prevent the load connected to the LFP battery from discharging the starter battery. This function is similar to that
of a Cyrix battery combiner or Argo FET battery isolator. Current can flow to the LFP battery only if the input voltage (= voltage on the starter battery)
exceeds 13V.
2. Current cannot flow back from the LFP battery to the starter battery, thus preventing eventual damage to the LFP battery due to excessive discharge.
3. Excessive input voltage and transients are regulated down to a safe level.
4. Charge current is reduced to a safe level in case of cell unbalance or over temperature.
5. The input current is electronically limited to approximately 80% of the AB fuse rating. A 50A fuse, for example, will therefore limit the input current to 40A.
Choosing the right fuse will therefore:
a. Protect the LFP battery against excessive charge current (important in case of a low capacity LFP battery).
b. Protect the alternator against overload in case of a high capacity LFP battery bank (most 12V alternators will overheat and fail if running at maximum
output during more than 15 minutes).
c. Limit charge current in order not to exceed the current handling capability of the wiring.
The maximum fuse rating is 100A (limiting charge current to approximately 80A).
Load/battery charger output/input (Power Port LB)
1. Maximum current in both directions: 200A continuous.
2. Peak discharge current electronically limited to 400A.
3. Battery discharge cut-off whenever the weakest cell falls below 3V.
4. Charge current is reduced to a safe level in case of cell unbalance or over temperature.
BMS 12/200 specification
Maximum number of 12,8V batteries 10
Maximum charge current, Power Port AB
80A @ 40°C
Maximum charge current, Power Port LB
200A @ 40°C
Maximum continuous discharge current, LB
200A @ 40°C
Peak discharge current, LB (short circuit proof) 400A
Approximate cut-off voltage 11V
GENERAL
No load current when operating 10mA
Current consumption when switched off
(discharging is stopped and charging remains enabled, both
through AB and LB, when switched off)
5mA
Current consumption after battery discharge cut-
off due to low cell voltage
3mA
Operating temperature range
-40 to +60°C
Humidity, maximum 100%
Humidity, average 95%
Protection, electronics IP65
DC connection AB, LB and battery minus M8
DC connection battery plus Faston female
6.3 mm
LED’s
Battery being charged through Power Port AB green
Battery being charged through Power Port LB green
Power port LB active green
Over temperature red
ENCLOSURE
Weight (kg) 1,8
Dimensions (hxwxd in mm)
65 x 120 x 260
STANDARDS
Emission EN 50081-1
Immunity EN 50082-1
Automotive Directive 2004/104/EC
AB
LB
Up to ten 12,8V LFP
batteries
can be connected in parallel
Isolated Orion DC
-DC converter needed for
DC loads with minus connected to chassis
BMS 12/200 for 12,8 Volt lithium iron phosphate batteries