Victron Energy
Smart BMS CL 12-100
- Max current100 A
- ArchitectureExternal pre-alarm relay
- Cycles (80% DoD)Depends on cells
- CommunicationVE.Direct
- LevelEntry
161 € HT
Pour qui : Sailboats < 30 ft, bank ≤ 100 Ah
View product2026 Comparator
Skysat marine lithium BMS comparator
5 marine lithium BMS batteries compared on the criteria that matter for cruising: max current, communication, cycle life, ecosystem integration. Workshop recommendation by navigation program + personalized calculator.
The essentials in 30 seconds
- No single winner: each BMS matches a specific program. CL 12-100 (coastal), Lynx Smart 500 (standard offshore), Lynx Smart 1000 NG (power yacht), MLi Ultra (CZone), MG Energy HE (racing).
- Cycle life (datasheet): 4 000 (Mastervolt) → 5 000 (Victron) → 8 000 (MG Energy) cycles at 80% DoD.
- Architecture: external (Victron Lynx) for centralized shunt and ABYC E-13 compliance, internal (Mastervolt, MG) for simplified plug-in integration.
- 2026 ex-works price: from €161 (entry) to €2 990 (premium racing) — see table below.
- For deeper insight: detailed comparison on our blog (full analysis, contextualization, extended FAQ).
The 5 marine BMS compared
Victron Energy
Lynx Smart BMS 500
- Max current500 A
- ArchitectureExternal (Lynx distribution)
- Cycles (80% DoD)~ 5 000
- CommunicationVE.Can + N2K + Bluetooth
- LevelStandard
968 € HT
Pour qui : Offshore cruising 30-50 ft, full Victron ecosystem
View productVictron Energy
Lynx Smart BMS 1000 NG
- Max current1000 A
- ArchitectureExternal NG
- Cycles (80% DoD)~ 5 000
- CommunicationVE.Can + N2K + Bluetooth
- LevelStandard +
971 € HT
Pour qui : 45-60 ft yachts with high power requirements
View productMastervolt
MLi Ultra 12/3000
- Max current250 A
- ArchitectureInternal + external MasterBus
- Cycles (80% DoD)~ 4 000
- CommunicationMasterBus + N2K + CZone
- LevelPremium yacht
2054 € HT
Pour qui : CZone yachts (Bénéteau, Jeanneau, Bavaria)
View productMG Energy Systems
HE Series 24V 304Ah
- Max current400 A peak / 200 A continuous
- ArchitectureInternal dual-bus
- Cycles (80% DoD)~ 8,000
- CommunicationOpen CAN + N2K + Bluetooth
- LevelPremium race
2990 € HT
Pour qui : Offshore racing, demanding long-distance cruising
View productDetailed comparison table
2026 distributor prices excluding VAT for France, excluding wiring and workshop labor.
| Criteria | Victron CL 12-100 | Victron Lynx Smart 500 | Victron Lynx Smart 1000 NG | Mastervolt MLi Ultra | MG Energy HE Series |
|---|---|---|---|---|---|
| Architecture | BMS dédié | BMS dédié | BMS dédié | Batterie à BMS intégré | Batterie à BMS intégré |
| Price ex. VAT 2026 | 161 € | 968 € | 971 € | 2 054 € | 2 990 € |
| Maximum continuous current | 100 A | 500 A | 1000 A | 250 A | 400 A peak / 200 A continuous |
| BMS architecture | External pre-alarm relay | External (Lynx distribution) | External NG (next generation) | Internal + external MasterBus | Internal dual-bus |
| Cycle life datasheet (80% DoD) | Depends on cells | ~ 5,000 | ~ 5,000 | ~ 4 000 | ~ 8 000 |
| Native communication | VE.Direct | VE.Can + NMEA 2000 + Bluetooth | VE.Can + NMEA 2000 + Bluetooth | MasterBus + NMEA 2000 + CZone | Open CAN + NMEA 2000 + Bluetooth |
| Level | Entry | Standard | Standard + | Premium yacht | Premium racing |
| Target program | Sailboats < 30 ft, bank ≤ 100 Ah | Offshore cruising 30-50 ft | Yachts 45-60 ft high power needs | CZone yachts (Bénéteau, Jeanneau) | Offshore racing, long-distance cruising |
Skysat workshop verdict — by program
Coastal
Sailboat ≤ 30 ft / coastal sailing
The Victron Smart BMS CL 12-100 (161 € HT) is more than sufficient for coastal use on small battery banks (≤ 100 Ah). Simple integration, compliant with IEC 62619.
Budget BMS + accessories: ~ $250 USD installed (excl. VAT)
View referenceOffshore
30-50 ft sailboat / transatlantic
The Victron Lynx Smart BMS 500 (968 € HT) is our workshop standard: external, VE.Can + NMEA 2000 communication, native integration with MultiPlus and MPPT.
Budget BMS + Lynx distributor + class T fuse: ~ $1,500 USD installed (excl. VAT)
View referenceOffshore racing
IMOCA / Class40 / long-distance cruising
The MG Energy HE Series (2 990 € HT) stands out for its 8 000-cycle cyclability and open CAN bus. Standard on high-performance offshore sailboats.
Budget BMS + accessories: ~ $3,500 USD installed (excl. VAT)
View reference3 common installation errors seen in the workshop — all brands included
- Missing or undersized class T fuse.
NH fuses are insufficient — Icc lithium exceeds 30 kA. Class T calibrated at max BMS current + 20%.
- Incompatible LFP alternator regulator left in place.
The lead-acid battery profile (3 stages) destroys the cells. Wakespeed WS500, Balmar MC-614 or Victron Orion XS required.
- No DC-DC isolator between alternator and BMS.
Without a Load Dump absorber, the BMS triggers during charging → overvoltage → alternator diodes burned out.
Recommendation calculator
4 questions to identify the BMS suited to your sailboat and program. Instant Skysat workshop recommendation.
FAQ — Choosing your BMS in practice
Peut-on comparer un BMS Victron et une batterie Mastervolt/MG ?
Peut-on comparer un BMS Victron et une batterie Mastervolt/MG ?
Pas directement : le BMS Victron gère un parc de cellules que vous ajoutez ; la MLi Ultra / MG HE est une batterie complète à BMS intégré. L'arbitrage se fait sur l'architecture, pas sur le prix unitaire (comparer un BMS à ~150-1000 € au prix d'une batterie à ~2000-3000 € n'a pas de sens — l'un gère, l'autre stocke).
Internal or external BMS?
Internal or external BMS?
External (Victron Lynx Smart) if you need a centralized shunt, independent charge/discharge disconnection, and ABYC E-13 compliance. Internal (Mastervolt MLi, MG Energy) for simplified plug-and-play integration and a single product pack + BMS. Neither is inherently superior — the choice depends on the target electrical architecture.
Can different brands be mixed (Mastervolt pack + Victron charger)?
Can different brands be mixed (Mastervolt pack + Victron charger)?
Technically yes, but not recommended in practice. The BMS communicates with its own chargers via its native bus. Without a common bus, you lose intelligent control (current modulation, preventive alarms, balancing). If mixing is necessary, plan for an NMEA 2000 gateway and accept a loss of precision.
Is a lithium BMS mandatory aboard?
Is a lithium BMS mandatory aboard?
Yes for all marine LFP packs. Without a BMS, you violate IEC 62619 (cell), ISO 16315 (electric propulsion), and ISO 10133 (low-voltage circuits) standards. In case of a claim, the insurer has grounds for exclusion. The BMS is not a comfort accessory; it is the mandatory safety device.
How many cycles in typical cruising?
How many cycles in typical cruising?
At 80% DoD in offshore cruising (200-300 cycles/year): 12-15 years for Mastervolt (4,000 cycles), 15-18 years for Victron (5,000 cycles), 20-25 years for MG Energy (8,000 cycles). Under correct thermal profile conditions (< 35 °C per cell) and BMS programming compliant with manufacturer specifications.
What is the lead time for spare parts in French service?
What is the lead time for spare parts in French service?
Victron: 24–48 h via importer network (Eldotech, Bavaria Distrib). Mastervolt: 48–72 h via Mastervolt France importer. MG Energy: 3–5 days via importer or direct order from Netherlands. Critical in offshore racing where downtime costs more than the part.
Is a workshop audit required before purchasing a BMS?
Is a workshop audit required before purchasing a BMS?
Highly recommended for lithium refits ≥ 200 Ah. The audit (1-2 h on-site or remotely) validates the consistency of the alternator + BMS + charger + DC-DC + protection chain. Cost: 250-400 € VAT excluded, deductible from the quote if the refit is confirmed with Skysat. Request an audit →
Skysat has distributed Victron Energy, Mastervolt, and MG Energy Systems brands since 2018. This comparison reflects our cumulative installation experience from 87 sailboat refits conducted between 2022 and 2026. The 2026 prices are indicative distributor prices (HT), excluding wiring and workshop labor. Cycle data from datasheets do not reflect real-world usage — thermal profile and BMS programming quality have a greater impact on longevity.
