The Victron smallBMS is a compact battery management system for Li-ion batteries, with a pre-alarm output. It controls remote on/off for inverters, chargers, and loads. Priced at $96.95 (compare at $349.38) – an incredible 72% saving.
Specifications
Brand: Victron Energy
Model: smallBMS
Product Type: Battery Management System
Compatibility: Victron LiFePO4 Smart batteries, other Li-ion with BMS
Outputs: Two outputs (control and pre-alarm)
Max Output Current: 1A
Pre-alarm: Yes, with 30-second delay
Key Functions
Controls remote on/off of BatteryProtect, inverters, DC-DC converters
Controls chargers via remote on/off
Issues pre-alarm at low voltage to prevent damage
Can drive high-current relay/contactor
Compatibility & Wiring
Works with Victron Smart Lithium batteries and can control MultiPlus, Cyrix-Li-Charge, BatteryProtect.
Deal Value
Save 72% – only $96.95. Free shipping over $45. Use code SAVE15 for extra 15% off.
The smallBMS ensures your Li-ion battery is not over-discharged or over-charged. It coordinates with your inverter/charger to shut down loads or charge as needed.
Easy to Integrate
With its simple wiring and configurable outputs, it's a must-have for any Victron Li-ion system.
Exceptional Value
At $96.95, you save $252.43 – an unbeatable deal for genuine Victron protection.
Frequently Asked Questions
Which batteries work with the Victron smallBMS?
The smallBMS is designed for Victron LiFePO4 Smart batteries and other 12V/24V Li-ion batteries with compatible BMS. It is not for lead-acid.
Can Victron smallBMS control a MultiPlus?
Yes, it can control the remote on/off input of a MultiPlus inverter/charger, as well as other devices like BatteryProtect and DC-DC converters.
How do I wire the pre-alarm output?
Connect the pre-alarm output to a buzzer, LED, or relay. It will activate when battery voltage is low, with a minimum 30-second delay before tripping.
What is the difference between smallBMS and VE.Bus BMS?
The smallBMS is simpler and lower cost, designed for smaller systems. VE.Bus BMS is for larger systems with VE.Bus devices like MultiPlus and Quattro. Both manage Li-ion batteries.
Where can I buy the smallBMS at a discount?
Buy it here at $96.95 – 72% off. Free shipping over $45. Additional 15% off with code SAVE15.
4.2★★★★★★★★★★(10)
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4 ★3
3 ★1
2 ★1
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Customer Reviews
10
★★★★★★★★★★5.0
r****p
Reliable BMS with pre-alarm
This smallBMS has been rock solid in my caravan. The pre-alarm is a lifesaver – it beeps before the battery cuts off, so I have time to reduce loads. The 1A output is enough for my needs. Great price for a Victron original.
★★★★★★★★★★4.0
k****r
Verified
Works as expected
Installed it on my trolling motor battery. It does what it should – controls charging and loads. The pre-alarm is annoying but that's the point. The 72% off was great.
★★★★★★★★★★5.0
z**g
Essential for Li-ion
If you're running Li-ion, you need this. It manages everything safely. The pre-alarm is loud enough to hear, and the setup was straightforward. I feel much safer now.
★★★★★★★★★★3.0
g***t
Okay but limited
Works, but I wish it had more user-adjustable settings. It's pretty much automatic, which is fine for basic setups, but if you want more control, look elsewhere. Still, it's a decent product.
★★★★★★★★★★5.0
q**m
Verified
Perfect for my solar setup
I paired this with my solar panels and battery, and it's been flawless. The pre-alarm alerted me to a low battery during a cloudy week, saving me from a dead battery. Excellent build quality. Would recommend to any boater or vanlifer.
★★★★★★★★★★4.0
n*****v
Verified
Good value
No issues after a month. It's a simple device that does its job. The pre-alarm is a nice touch. The discount made it a no-brainer.
★★★★★★★★★★5.0
g*i
Top-notch BMS
Very robust and reliable. The pre-alarm is a great early warning system. I've used other BMS units, but this one integrates seamlessly with my Victron charger. Definitely worth the price.
★★★★★★★★★★2.0
i*n
Verified
Not for me
Too basic for my needs. I wanted to customize settings, but there's no interface except for the pre-alarm. It might work for others, but I found it limiting.
★★★★★★★★★★4.0
z***c
Works fine
Installed on my boat. It's been reliable so far. The pre-alarm is a bit sensitive, but that's better than being unaware. Good value at this price.
★★★★★★★★★★5.0
x**w
Verified
Great little gadget
Just what I needed. Small, easy to install, and works perfectly. The pre-alarm gives me peace of mind. Highly recommended.
