SKU: 30534205870

Victron SmallBMS f/Smart LiFePO4 Batteries w/M8 [BMS400100000]

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Description

Victron SmallBMS f/Smart LiFePO4 Batteries w/M8 [BMS400100000]SmallBMS for Smart LiFePO4 Batteries with M8 A simple and low cost alternative to the VE. Bus BMS. The smallBMS can replace the VE. Bus BMS in several applications. It is however not suitable for use with VE. Bus MultiPlus and Quattro inverter chargers: it has no VE. Bus interface. The smallBMS is intended for use with Victron Smart LiFePo4 batteries with M8 circular connectors. The smallBMS has three outputs, similar to the VE. Bus BMS. Load

SmallBMS for Smart LiFePO4 Batteries with M8

A simple and low-cost alternative to the VE.Bus BMS. The smallBMS can replace the VE.Bus BMS in several applications. It is however not suitable for use with VE.Bus MultiPlus and Quattro inverter/chargers: it has no VE.Bus interface.

The smallBMS is intended for use with Victron Smart LiFePo4 batteries with M8 circular connectors. The smallBMS has three outputs, similar to the VE.Bus BMS. Load Disconnect output The Load output is normally high and becomes free-floating in case of the cell under voltage (default 2,8V/cell, adjustable on the battery between 2,6V and 2,8V per cell). Maximum current: 1A. The Load output is not short-circuit protected.

The Load output can be used to control:

  • A high current relay or contactor.
  • The remote on/off the input of a Battery Protect, inverter or DC-DC converter, or other loads.

Pre-alarm output

The pre-alarm output is normally free-floating and becomes high in case of the imminent cell under voltage (default 3,1V/cell, adjustable on the battery between 2,85V and 3,15V per cell). Maximum current: 1A (not short circuit protected).

The minimum delay between pre-alarm and load disconnect is 30 seconds.

Charge disconnect output

The Charger output is normally high and becomes free-floating in case of imminent cell overvoltage or over-temperature. Maximum current: 10mA. The Charger output is not suitable to power an inductive load such as a relay coil. 

The Charger output can be used to control:

  • The remote on/off of a charger
  • A Cyrix-Li-Charge relay
  • A Cyrix-Li-ct Battery Combiner

System on/off input

The system on/off input controls both outputs. When off, both outputs will be free floating so that loads and chargers are turned off. The System on/off consists of two terminals: Remote L and Remote H. A remote on/off switch or relay contact can be connected between L and H. Alternatively, terminal H can be switched to battery plus, or terminal L can be switched to battery minus.

Protects 12V, 24V and 48V systems

Operating voltage range: 8 to 70V DC.

LED indicators:

  • Load ON (blue): Load output high (cell voltage >2.8V, adjustable on the battery).
  • Temp or OVP (red): Charger output free floating (due to cell over temperature (>50°C), cell under temperature (<5 °C) or cell over voltage).
Please contact your dealer for any returns, repairs or support issues related to this product.
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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 30534205870

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4.2 ★★★★★
Based on 13 reviews
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Jeff D.
Belleville, US
★★★★★ 5
Slim profile, stays anchored all night (Berry flavor is great!)
Scent Name: Berry, Size: 100 Count, Scent Name: Berry, Size: 100 Count
I rely on these nightly to combat dry mouth, and they deliver exactly what is promised. The adhesion mechanism is impressive—once placed against the gum, the disc stays securely anchored for a full 6–8 hours without shifting, allowing me to sleep without interruption. ​The profile is ideal; the discs are incredibly slim and unobtrusive, so you don't feel like you have a bulky object in your mouth while trying to fall asleep. Despite being so compact, they pack enough moisture to last until morning. The Berry flavor is mild and soothing, making it a perfect bedside companion. Highly recommended.
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Reviewed in the United States on February 11, 2026
G
Verified Purchase
Gabrielle Grim
Natrona Heights, US
★★★★★ 5
Excellent product for dry mouth
Scent Name: Berry, Size: 100 Count
If you are having trouble with dry mouth, especially while sleeping, this is definitely the product for you. I have severe dry mouth and have tried multiple things including hard candy (yes, I know not very smart) as well as different biotin products, the mouthwash, the spray and the gel, which all do work, but do not last for very long. These stay in place open the corner of your mouth, last for hours and truly work. I highly recommend it if you are having a dry mouth issue
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Reviewed in the United States on February 5, 2026
S
Verified Purchase
Sharon
Draper, US
★★★★★ 5
Works great
Scent Name: Berry, Size: 100 Count
I have to use these for about 1/2 a year. I keep bronchitis and sinusitis from about Oct. to April every since I was a child. When I am suffering with these I can't breath through my nose, epically at night while sleeping and would wake up several times a night with dry mouth so bad ir was literally painful. My mom turned me on to these because she was using the with her CPAP. I sometimes have a bit of difficulty getting them to stay put but overall they are great. I have tried the OG, cinnamon, and berry. The OG have no real taste, but you wake up with a sweet taste in your mouth. I tried the cinnamon because I love cinnamon and didn't listen to the reviews stating how strong the flavor is, big regret, it's like putting two or three fireballs in your mouth, won't be making that mistake again. The berry ones are actually best in my opinion. They have a light berry flavor that isn't overpowering, isn't quite as sweet as the OG. Whichever one you choose you won't wake up in pain. I do suggest using only one at first as opposed to the two they recommend, unless you like waking up with your head on a water logged pillow. One generally gets me through the night unless my congestion is super bad, then I will sometimes have to use a 2nd one about 1/2 way through my night when I wake up for the bathroom and realize it's already completely dissolved.
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Reviewed in the United States on September 21, 2025
W
Verified Purchase
Winter
Massapequa, US
★★★★★ 5
Excellent lozenges for dry mouth that stick to the gum and stay in place
Size: 40 Count (Pack of 1)
I've used these for years for dry mouth both during the day and at night. The have a very pleasant mint-like flavor and last for hours. What's unique about them is that one side of the lozenge has the ability to "stick" to your gum and it actually stays there. Simply put it in your mouth, push it to the spot you prefer (I like it towards the back over molars) and it will stay there for hours slowly melting and providing dry mouth relief. It works at night when you're asleep and I've never had it move or slip out of place with the risk of choking on it. It is a hard lozenge, not soft which I imagine contributes to its long life. It's roughly 1/2" in size so it will fit smaller mouths easily. If you have dry mouth, I highly recommend this lozenges and if you buy the 3 pack, they are really good value for the money.
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Reviewed in the United States on May 20, 2026
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Verified Purchase
Melissa
West Palm Beach, US
★★★★★ 5
100% works, you do have to get used them, bit uncomfortable at first but so worth it.
Size: 40 Count (Pack of 1)
I wake up with my breath feeling fresh and my mouth not emulating the sahara desert. It took me a while to get use to these. I had to find a spot where it was comfortable and stayed put (for me thats right above the tooth right behind (the next one back from) the canine, pushed as far up into my gum/lip area as it can go. The size takes some getting used to also (they arent huge they just feel big once in you can still talk and go about your day as normal and no kne will notice it), however they do last all night. Once you get the hang out of they’re actually quite easy to use. I have tried both the mint (which is mild and pleasant no burning sensation and gives the freshest feeling in the morning) and the plain ones (works but being plain your mouth doesnt feel as fresh in the morning, these are great if you hate mint or worse have a mint allergy, personally I find this very thoughtful of the company) These 100% work. I dont even sleep with my mouth open (has been confirmed) and I would still wake up with the dryest of dry mouths, it gets so bad it’ll actually wake me sometimes. My mouth would hurt in the mornings because it would be so dry. Went in search of anything that could help and stumbled upon these tablets. Figured why not. So glad I did because now I put one of these in every night before bed and when I wake up my mouth isn't dry, these really do help keep your mouth salivating throughout the night. I use them during the day sometimes too. Xylitol is the only thing I've found that actually helps dry mouth. Which in turns helps your teeth stay healthy. (so win win in my book)
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Reviewed in the United States on May 17, 2025

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