{"product_id":"victron-smallbms-ng","title":"Victron smallBMS NG - BMS400100300","description":"\u003ch1 style=\"color: #f87c24;\"\u003eVictron Energy smallBMS NG\u003c\/h1\u003e\n\n\u003cp\u003eThe Victron Energy smallBMS NG is a compact battery management system designed for use with Victron lithium iron phosphate (LiFePO4) batteries in smaller off-grid and marine installations. It protects the battery from over-charge, over-discharge and over-temperature conditions, making it suited to systems where a full-featured BMS would be oversized or unnecessary.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides cell protection against over-voltage, under-voltage and over-temperature for compatible Victron LiFePO4 batteries.\u003c\/li\u003e\n  \u003cli\u003eCompact and lightweight design at 66 g, suitable for space-constrained installations in boats, campervans and small off-grid cabins.\u003c\/li\u003e\n  \u003cli\u003eLoad disconnect output allows the BMS to cut non-essential loads when the battery reaches a low state of charge.\u003c\/li\u003e\n  \u003cli\u003eCharge disconnect output signals chargers to stop charging when the battery is full or a cell fault is detected.\u003c\/li\u003e\n  \u003cli\u003eNext Generation (NG) variant with updated internal architecture for improved compatibility with current Victron LiFePO4 battery range.\u003c\/li\u003e\n  \u003cli\u003eSimple wiring with clearly defined load disconnect and charge disconnect terminals, reducing installation complexity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe smallBMS NG monitors individual cell voltages and battery temperature within compatible Victron LiFePO4 batteries. When a cell reaches its upper or lower voltage limit, or when temperature exceeds the safe operating range, the BMS activates its disconnect outputs to protect the battery from damage. This is a passive protection approach: the BMS does not actively balance cells but relies on the battery's internal cell balancing and the charger's absorption settings to maintain cell health over time.\u003c\/p\u003e\n\n\u003cp\u003eThe charge disconnect output is typically wired to the remote on\/off input of a Victron charger or MPPT solar charge controller. The load disconnect output is wired to a relay or load switch to shed non-critical loads before the battery reaches a damaging depth of discharge. This architecture keeps the BMS wiring straightforward and avoids routing high currents through the BMS unit itself, which keeps the unit small and the installation tidy.\u003c\/p\u003e\n\n\u003cp\u003eThe NG designation indicates this is the current production version, updated for compatibility with Victron's present LiFePO4 battery product range. It replaces the earlier smallBMS variant and should be specified for new installations.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSKU: BMS400100300\u003c\/li\u003e\n  \u003cli\u003eGTIN: 8719076063537\u003c\/li\u003e\n  \u003cli\u003eWeight: 0.066 kg (66 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSmall off-grid cabins and garden buildings with a single Victron LiFePO4 battery.\u003c\/li\u003e\n  \u003cli\u003eMarine installations: sailing yachts, motorboats and narrowboats with compact lithium battery banks.\u003c\/li\u003e\n  \u003cli\u003eCampervan and motorhome leisure battery systems using Victron LiFePO4 batteries.\u003c\/li\u003e\n  \u003cli\u003ePortable power systems and small solar storage setups where a full BMS would be disproportionate.\u003c\/li\u003e\n  \u003cli\u003eReplacement or upgrade from the original smallBMS in existing Victron lithium installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eWhat Is Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Victron Energy smallBMS NG unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #f87c24;\"\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eThe smallBMS NG must be used exclusively with compatible Victron LiFePO4 batteries. It is not suitable for lead-acid, AGM, gel or third-party lithium batteries. Wiring should be carried out by a qualified electrician or experienced marine\/off-grid installer familiar with lithium battery systems. Incorrect wiring of the charge disconnect or load disconnect outputs can result in battery damage or system failure. Verify compatibility with your specific Victron LiFePO4 battery model before installation.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":59855275032910,"sku":"BMS400100300","price":65.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/3698\/8238\/files\/VoltaconSolar_-_BMS400100300_-_smallBMS_NG.webp?v=1781091986","url":"https:\/\/voltaconsolar.com\/products\/victron-smallbms-ng","provider":"VoltaconSolar","version":"1.0","type":"link"}