Victron
MultiPlus-II 48/3000/35
Inverter/charger · 35 A · 2.4 kW
Good for
Smaller packs and boats that also want modest 230 V power on board.
Check before buying
35 A is slow for a large propulsion pack — check the charge time below.
48 V shore chargers and inverter/chargers: Victron vs Torqeedo vs Sterling
Charge current sets how long the boat sits on shore power. An inverter/charger also turns the propulsion bank into 230 V for the galley and tools — one box instead of two.
Charge currents below are at 48 V. Enter your pack size in the checker to see roughly how long each takes to refill it.
Manufacturer figures, checked 22 October 2026Sources & disclosure
What fits your boat?
- Victron MultiPlus-II 48/3000/35about 12.8 h for 26 kWh
- Victron MultiPlus-II 48/5000/70about 6.4 h for 26 kWh
- Victron MultiPlus-II 48/8000/110about 4.1 h for 26 kWh
- Torqeedo Fast charger 2900 W (Power 48-5000)about 8.9 h for 26 kWh
- Sterling Power Pro Charge Ultra 48 V (PCU4815)about 29.8 h for 26 kWh
Green: refills overnight (12 hours or less) from 20 %. Method in the notes below.
Don't know your figures? Size your boat in the configurator — it works out power, voltage, pack size and phase current from your hull and target speed.
Side by side
Victron MultiPlus-II 48/3000/35 | Victron MultiPlus-II 48/5000/70 | Victron MultiPlus-II 48/8000/110 | Torqeedo Fast charger 2900 W (Power 48-5000) | Sterling Power Pro Charge Ultra 48 V (PCU4815) | |
|---|---|---|---|---|---|
| Type | Inverter/charger, 230 V | Inverter/charger, 230 V | Inverter/charger, 230 V | Charger only | Charger only, 3 outputs |
| Charge current (48 V) | 35 A | 70 A | 110 A | 50 A | 15 A |
| Inverter output | 2,400 W continuous at 25 °C | 4,000 W continuous at 25 °C | 6,400 W continuous at 25 °C | — | — |
| Shore input | 187–265 V AC; 32 A transfer switch | 187–265 V AC; 50 A transfer switch | 187–265 V AC; 100 A transfer switch | Not stated on the product page | 80–270 V AC, 40–70 Hz |
| Protection | IP22 | IP22 | IP22 | IP65 | IP22 |
| Weight | 19 kg | 30 kg | 42 kg | Not stated | 3.0 kg |
| Battery communication | VE.Bus; follows BMS limits via a GX device (DVCC) | VE.Bus; follows BMS limits via a GX device (DVCC) | VE.Bus; follows BMS limits via a GX device (DVCC) | TorqLink | Standalone; LiFePO₄ profile among 11 presets |
Scroll sideways on a phone. “Not stated” means the manufacturer's page doesn't give the figure.
Which one for which boat
Most 48 V propulsion boats
Victron MultiPlus-II 48/5000/70
70 A charging and 4 kW of 230 V, with BMS-controlled charging via DVCC.
Torqeedo battery owners
Torqeedo Fast charger 2900 W (Power 48-5000)
50 A, IP65, and TorqLink to the battery.
Light-duty or backup
Sterling Power Pro Charge Ultra 48 V (PCU4815)
Compact 15 A charger with a LiFePO₄ profile.
The products
Victron
MultiPlus-II 48/5000/70
Inverter/charger · 70 A · 4 kW
Good for
Most 48 V propulsion boats: quicker charging plus enough 230 V for a galley.
Check before buying
Drawing full charge power needs a shore supply that can deliver it.
Victron
MultiPlus-II 48/8000/110
Inverter/charger · 110 A · 6.4 kW
Good for
Large packs where overnight charging on a strong shore supply matters.
Check before buying
42 kg and a large footprint; full charge power needs a substantial shore connection.
Torqeedo
Fast charger 2900 W (Power 48-5000)
Charger · 50 A · IP65
Good for
Torqeedo Power 48-5000 batteries — 0 to 100 % in under two hours, per Torqeedo.
Check before buying
Made for Torqeedo's battery; not a general-purpose charger.
Sterling Power
Pro Charge Ultra 48 V (PCU4815)
Charger · 15 A · 3 outputs
Good for
Maintenance charging and small 48 V banks, or a second charger alongside a bigger one.
Check before buying
15 A will take a long time to refill a propulsion-size pack, and it doesn't take limits from a BMS.
Reading the numbers
- The charge-time estimate uses the configurator's method: from 20 % to full, at the 51.2 V nominal bank voltage, plus 10 % for the slower final stage. Real times depend on the BMS's charge limits and the shore supply.
Questions
Common questions
How long does it take to charge an electric boat battery?+
Roughly the energy you put back divided by the charger's DC power. A 25.6 kWh pack from 20 % to full takes about 12.6 hours at 35 A and about 6.3 hours at 70 A on a 48 V system, by the method below. The checker on this page calculates it for your pack.
Should I buy a charger or an inverter/charger?+
If you want 230 V on board from the propulsion bank — galley, tools, a watermaker — an inverter/charger does both jobs in one unit. If you only need to refill the batteries, a charger is simpler and lighter.
Background reading
Sources & disclosure
Figures checked on 22 October 2026 against these manufacturer documents. Makers change specifications; confirm against the current datasheet before you buy.
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