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 Comparison
Marine lithium BMS comparison tool — Skysat
5 marine lithium BMS batteries compared on the criteria that matter for pleasure boating: 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-and-play integration.
- 2026 ex-works price: from €161 (entry) to €2 990 (premium racing) — see table below.
- For further reading: detailed comparison on our blog (full analysis, contextualization, extended FAQ).
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, 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 : Sailboats 45-60 ft with high power requirements
View productMastervolt
MLi Ultra 12/3000
- Max current250 A
- ArchitectureInternal + external MasterBus
- Cycles (80% DoD)~ 4,000
- CommunicationMasterBus + NMEA 2000 + CZone
- LevelPremium yacht
2054 € HT
Pour qui : CZone sailboats (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 + NMEA 2000 + Bluetooth
- LevelPremium racing
2990 € HT
Pour qui : Offshore racing, demanding long-range cruising
View productDetailed comparison table
Prices excluding VAT 2026, authorized French distributor, 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 |
| Ex-works price 2026 | 161 $ | 968 $ | 971 $ | 2,054 $ | 2,990 $ |
| Maximum continuous current | 100 A | 500 A | 1,000 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 | Dual-bus internal |
| Cycle datasheet (80% DoD) | Cell-dependent | ~ 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 application | Sailboats < 30 ft, battery bank ≤ 100 Ah | Offshore cruising 30-50 ft | Yachts 45-60 ft high power needs | Yachts CZone (Bénéteau, Jeanneau) | Offshore racing, long-distance cruising |
Skysat workshop verdict — by program
Coastal
Sailboat ≤ 30 ft / inshore sailing
The Victron Smart BMS CL 12-100 (€161 excl. VAT) is more than adequate for coastal use with small battery banks (≤ 100 Ah). Simple integration, compliant with IEC 62619.
BMS budget + accessories: ~ 250 € ex-VAT installed
View referenceOffshore
Sailboat 30-50 ft / transat
The Victron Lynx Smart BMS 500 (968 € HT) is our workshop standard: external, VE.Can + NMEA 2000 communication, native MultiPlus and MPPT integration.
BMS + Lynx distributor + class T fuse budget: ~ €1,500 excl. VAT
View the 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 interface. Standard on high-performance offshore sailboats.
BMS + accessories budget: ~ €3,500 excl. VAT installed
View the reference3 installation errors seen in the workshop — all brands included
- Missing or undersized class T fuse.
The NH fuse is insufficient — Icc lithium exceeds 30 kA. Class T calibrated at max BMS current + 20%.
- Incompatible LFP alternator regulator left in place.
The lead profile (3 phases) destroys the cells. Wakespeed WS500, Balmar MC-614 or Victron Orion XS mandatory.
- 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 require 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 pack + BMS solution. Neither is inherently superior — the choice depends on the target electrical architecture.
Can you mix brands (Mastervolt pack + Victron charger)?
Can you mix brands (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 onboard?
Is a lithium BMS mandatory onboard?
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 the event 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 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 € HT, deductible from the quote if the refit is confirmed at Skysat. Request an audit →
Skysat has distributed Victron Energy, Mastervolt, and MG Energy Systems 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 excluding wiring and workshop labor. The datasheet cycle ratings do not reflect real-world usage — thermal profile and BMS programming quality have a greater impact on battery longevity.
