Victron BlueSolar MPPT Charge Controller — 100/30 & 100/50

The same mid-range MPPT charging as the SmartSolar — without built-in Bluetooth. The Victron BlueSolar MPPT 100/30 and 100/50 use identical charging hardware to the SmartSolar versions: ultra-fast Maximum Power Point Tracking, a multi-stage adaptive algorithm, and up to 98% efficiency on a 12 V or 24 V bank. The one difference is that Bluetooth isn't built in — add a VE.Direct Bluetooth Smart dongle for wireless setup, or configure over VE.Direct with a GX device. Want Bluetooth out of the box? Choose the SmartSolar version.

Who the BlueSolar MPPT 100/30 & 100/50 is built for

• Cruising sailboats — bimini and arch arrays in the 300–1,400 W range, where fast tracking beats rigging and sail shadow.
• Mid-size RVs, vans, and overlanders — a roof of two to four panels charging a 12 V or 24 V house bank.
• Small off-grid cabins and tiny homes — a growing array that has outgrown an entry-level controller.
• Budget-conscious and GX-monitored builds — the same charging as the SmartSolar; if you run a Cerbo GX you monitor over VE.Direct anyway.

How to read the model number

• First number = max PV input voltage. 100 V on both — enough for one or two panels in series.
• Second number = max charge current to the battery. 30 A on the 100/30, 50 A on the 100/50.

Combine those with the maximum PV wattage your system voltage supports to size the controller. Wesley walks the whole process in our MPPT sizing guide.

Choose your controller

Not sure which model fits your array? Use our MPPT sizing calculator, or schedule an online consultation with one of our advisors.

Both support 12 V and 24 V battery systems with auto-detection. Neither supports 48 V — for a 48 V bank, look at the BlueSolar 150- or 250-series instead.

Which one's right for your install:

• 100/30. Two 200 W panels on a 12 V sailboat, a single large panel on a van roof, most cruising bimini arrays under ~440 W on 12 V (or up to 880 W on 24 V). The default mid-range pick.
• 100/50. Three or four mid-sized panels on a cabin top, RV roofs running 500–1,400 W, off-grid sheds where you've grown out of the 100/30 but the array is still under ~700 W on 12 V (or ~1,400 W on 24 V).

Why these are the default mid-range picks

• Ultrafast MPPT, up to 98% efficiency. Harvests up to 30% more energy than a PWM controller and up to 10% more than a slower MPPT — the difference is real on a partly cloudy day at anchor.
• Smart partial-shading algorithm. The BlueSolar algorithm scans the whole power curve and locks to the true maximum instead of a local peak — useful with rigging shadow or a roof rack crossing the array.
• VE.Direct port. Connects to a Cerbo GX, Color Control GX, or the MPPT Control display for live data, alerts, and remote access via VRM. Add a Bluetooth dongle for wireless setup from your phone.
• Multi-stage charging for every common chemistry. Eight pre-programmed profiles (lithium, AGM, gel, flooded) selectable from a rotary switch, plus a fully programmable mode. Lithium banks must be set to the correct profile.
• VE.Smart Networking (with a dongle or Smart Battery Sense). Get temperature- and voltage-compensated charging by reading the battery at the bank instead of estimating at the controller.
• Recovers fully discharged banks. Resumes charging on a bank pulled down to 0 V.
• Passive cooling. No fan, no audible noise. Full rated output up to 40 °C (104 °F); rated to operate from -30 °C to +60 °C.

Shared specs

What's in the box

BlueSolar charge controller, mounting screws, and the printed quick-start guide. Not included: VE.Direct cable, VE.Direct Bluetooth Smart dongle (for wireless), a fuse sized to the charge current, PV cables, and battery cables sized to AWG 6 or larger.

Pair with

• VE.Direct Bluetooth Smart dongle — adds wireless VictronConnect setup and monitoring.
• VE.Direct cable — required if you're integrating with a Cerbo GX or other GX device.
• MEGA fuse on the battery side — Victron specifies 35–40 A for the 100/30 and 55–70 A for the 100/50.
• Smart Battery Sense or BMV-712 — feeds true battery voltage and temperature to the controller for more accurate charging.
• Cerbo GX MK2 or Ekrano GX — for always-on monitoring and remote access through VRM.

FAQs

Q: BlueSolar or SmartSolar — what's the difference?
The charging hardware is identical. SmartSolar has Bluetooth built in; BlueSolar does not. With a BlueSolar you add a VE.Direct Bluetooth Smart dongle for wireless, or configure over VE.Direct with a GX device. If you want Bluetooth out of the box, buy the SmartSolar.

Q: Do I need the dongle?
Only if you want wireless setup/monitoring and don't have a GX device. If you run a Cerbo GX (or use the MPPT Control display), you configure and monitor over VE.Direct without it.

Q: Can I use this with a lithium battery?
Yes — lithium is one of the eight pre-programmed chemistries. Select the right profile during setup; for third-party LFP, follow the battery maker's charge voltages.

Q: Can I run this on a 48 V system?
No. The 100/30 and 100/50 are 12 V/24 V only. For 48 V, look at the BlueSolar 150- or 250-series.

Q: What size fuse do I need?
35–40 A for the 100/30 and 55–70 A for the 100/50, per Victron's installation manual. We stock MEGA fuses in all of those values.

Q: What battery cable should I use?
AWG 6 (16 mm²) flexible multi-stranded copper for the battery and PV connections. Don't use solid-core or coarse-stranded cable.

Q: What's the warranty?
5 years from date of purchase, extendable to 10 years for a 10% surcharge. Standard Victron limited warranty applies.

Still sizing your array? Read Wesley's MPPT sizing guide, or email support@bluemarine.com with your panel specs and battery voltage — a tech will confirm the right controller and fuse before you order.

Why buy your BlueSolar MPPT from Blue Marine

• Authorized Victron Energy Distributor — genuine product, fully supported warranty.
• ABYC-certified Advisors — real solar sizing help, not a call center.
• Free US shipping over $49 from our Seattle warehouse.
• 60-day hassle-free returns.
• Local pickup available in Seattle, WA.
• Custom quotes & full system design — request a quote for a complete build.
• Dealer & installer program — apply here for trade pricing.