Victron Smart BMS CL 12V 100A Suitable for LiFePO4 Batteries (BMS110022000)

Warranty Option: Standard 5 Years Warranty
Sale price$300.00


The Smart BMS CL 12/100 is a Battery Management system for Victron lithium-iron-phosphate (LiFePO4) Smart Batteries. It has been specifically designed for 12V systems with a 12V alternator. 

The BMS CL 12/100 monitors and protects each individual battery cell within the battery (or battery bank) and will disconnect the alternator, charge sources or DC loads in case of low battery voltage, high battery voltage or over temperature.


Battery Management system- The BMS connects to 12,8V Victron LiFePO4 (LFP) batteries. Up to 5 batteries may be connected in parallel. Can be used as a system on/off switch. 

Alternator and battery protection- The input current is electronically limited to approximately 90% of the fuse rating. A 100A fuse, for example, will therefore limit the input current to approximately 90A.

Choosing the right fuse will:

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 5 minutes).

Starter battery Protection- 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.

And current cannot flow back from the LFP battery to the starter battery, thus preventing eventual damage to the LFP battery due to excessive discharge.

Li-ion battery protection- Excessive input voltage and transients are regulated down to a safe level. The Smart BMS CL will stop charging in case of cell over voltage or over temperature. It has three outputs, similar to the miniBMS:

Load Disconnect output- The Load output is normally high and becomes free floating in case of imminent cell under voltage (default 2,8V/cell, adjustable on the battery between 2,6V and 2,8V per cell). Maximum current: 10mA. The Load output can be used to control the remote on/off input of a Battery Protect, inverter, DC-DC converter or other loads.

Pre-Alarm output- The pre-alarm output can be used as warning when the battery voltage is low and it will trip shortly before the Load Disconnect output is disabled due to cell under voltage.

The pre-alarm output may be used to drive a relay, LED or Buzzer. It can be configured as continuous or intermittent signal.

Charge disconnect output- The Charger output is normally high and becomes free floating in case of imminent cell over voltage or over temperature. Maximum current: 10mA.


Remote on/off input- The remote on/off input controls the charging via the alternator. When off, charging via the alternator is disabled, while the BMS functionality will remain active allowing any loads and chargers to continue working regardless of the state of the remote input.

Ignition proof- No relays but MOSFET switches, and therefore no sparks.


Smart BMS CL 12V 100A

Maximum continuous charge current 100 (with 125A fuse)
Input voltage to start charging >13V
Load disconnect output: Normally high (Vbat - 0.1V)
Source current limit: 10mA (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
High (Vbat) in case of alarm, max. 1A (not short circuit proof)
System on/off: Use modes of the system on/off:
Remote L & Remote H A: ON when the L & H terminal are interconnected
B: ON when the L terminal is pulled to battery minus
C: ON when the H terminal is high
D: OFF in all other conditions
Operating temperature range: -40 to +60°C
Humidity, maximum / average 100% / 95%
Protection, electronics IP65
DC power connection M8
DC connector battery minus Fastoon female, 6.3mm
Weight (kg) 1,6
Dimensions (HxWxD) 65 x 120 x 224mm
Emission EN 61000-6-3, EN 55014-1
Immunity EN 61000-6-2 EN 61000-6-1 EN 55014-2
Automotive EMC Directive ECE R10-5



Victron Energy warrants its products to be free from defects in workmanship and materials for a period of: Batteries: 2 year limited warranty Li-ion batteries: 3 year limited warranty All other products: 5 -year limited warranty.

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