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CalTech Victron Energy · Solar · Batteries · Laptops | Randburg | Nationwide Delivery

Quick answers about the Victron MultiPlus 12/500/20-16 ⚡This compact inverter/charger is one of the most common Victron ...
20/08/2026

Quick answers about the Victron MultiPlus 12/500/20-16 ⚡

This compact inverter/charger is one of the most common Victron units we get asked about — here’s what it actually does.

🔴 Switches to battery power in under 20 milliseconds — your electronics won’t even notice the outage.

🔴 Run your router, laptop, and TV together and you’re using roughly 90–100W of the available 430W. Real headroom, not a tight squeeze.

Questions about your setup? Drop them below or send us a message.

🛒 caltech.co.za
📞 065 083 8326
📧 [email protected]
📍 Randburg, Johannesburg

Eskom’s tariffs aren’t slowing down. Your setup should be. ⚡This is what came off the latest delivery — genuine Victron ...
20/08/2026

Eskom’s tariffs aren’t slowing down. Your setup should be. ⚡

This is what came off the latest delivery — genuine Victron components, in stock now:

🔵 Victron Blue Smart Charger 12V | 4A — R1,249
Configurable 2A or 4A charging, IP65-rated, recovers batteries from 0V, rated to -40°C.

☀️ Victron SmartSolar MPPT 75/10 — R849
75V max PV input, up to 290W array capacity (24V), advanced partial shading algorithm.

🔌 Victron MultiPlus 12/500/20 — R4,999
500VA inverter, 20A charger, uninterrupted AC power on grid loss.

Premium components. Expert advice. Fast delivery.

🛒 caltech.co.za
📞 065 083 8326
📧 [email protected]
📍 Randburg, Johannesburg

18/08/2026

The Victron range just landed. 📦⚡

Blue Smart Chargers, SmartSolar MPPT controllers, MultiPlus-II inverters — fresh stock, straight off the delivery.

Got a system you’re planning? Send us a DM — we’ll help you spec it right.

🛒 caltech.co.za
📞 065 083 8326
📧 [email protected]
📍 Randburg, Johannesburg

Load shedding doesn’t check your calendar. ⚡The EcoFlow RIVER Pro keeps your setup running through the outage — laptop, ...
14/08/2026

Load shedding doesn’t check your calendar. ⚡

The EcoFlow RIVER Pro keeps your setup running through the outage — laptop, monitor, router, lights — without missing a call.

• 720Wh capacity — real backup, not a power bank
• 600W continuous output, 1200W surge (X-Boost)
• Recharges 0–80% in under an hour

EcoFlow RIVER Pro | R4,999

Work doesn’t stop. Neither should your setup.

🛒 Shop online — link in bio
📦 Nationwide delivery

🛒 caltech.co.za
📞 065 083 8326
📧 [email protected]
📍 Randburg, Johannesburg

Most people size backup power by budget, not by actual load. That’s how you end up with a system that “should” last all ...
12/08/2026

Most people size backup power by budget, not by actual load. That’s how you end up with a system that “should” last all night — and doesn’t.

A fridge, router, and a few lights pull roughly 150–300Wh an hour. Pair a Lithtech 12V 200Ah battery (2560Wh) with a Victron Phoenix 12/1200 inverter, and you’re looking at around 8–12 hours of real backup — not a spec sheet number, a livable one.

Note: this setup is sized for a typical modern home fridge. Large, older, or side-by-side units draw a bigger startup surge and may need a bigger inverter — message us and we’ll help you size it properly.

Undersizing is the #1 reason backup systems disappoint people. Get it right the first time.

🛒 caltech.co.za
📞 065 083 8326
📧 [email protected]
📍 Randburg, Johannesburg

Real feedback from real customers. ⭐⭐⭐⭐⭐“The price is brilliant. The service is excellent. The delivery was faster than ...
07/08/2026

Real feedback from real customers. ⭐⭐⭐⭐⭐

“The price is brilliant. The service is excellent. The delivery was faster than expected.”
— JP Tromp, Google Review

5.0 stars across 7 Google reviews — and counting.

🛒 Shop the range at caltech.co.za
📦 Nationwide delivery | 📍 Randburg, Johannesburg

Eskom’s tariff has already climbed 22.6% since 2024. Not projected — already on your bill. ⚡12.74% in 2025. 8.76% more f...
05/08/2026

Eskom’s tariff has already climbed 22.6% since 2024. Not projected — already on your bill. ⚡

12.74% in 2025. 8.76% more from this April. And a further 2027 increase is currently before the courts, with NERSA under a court order to decide by 31 August.

Waiting doesn’t freeze the number. It just means you pay the next one too.

We help you build a system that takes that variable off the table.

🌐 caltech.co.za
📍 Randburg, Johannesburg
📞065 083 8726

LiFePO4 costs more. Here’s why that’s the point. ⚡If you’re running an inverter through a load-shedding cycle, the batte...
04/08/2026

LiFePO4 costs more. Here’s why that’s the point. ⚡

If you’re running an inverter through a load-shedding cycle, the battery behind it matters more than people think.

Swipe through the real numbers.

Shop the full range at caltech.co.za

03/08/2026

The numbers behind real backup power. ⚡

Victron Phoenix Inverter 12/1200 — 1000W continuous, 2200W peak.
Lithtech 12V 100Ah LiFePO4 — 1280Wh, IP67-rated.

Two components. One system built for actual energy independence — not just a spec sheet.

Shop the full range at caltech.co.za

Your fridge. Your laptop. Your router. Your lights.The EcoFlow River 2 Max carries 512Wh and delivers 500W of continuous...
15/05/2026

Your fridge. Your laptop. Your router. Your lights.

The EcoFlow River 2 Max carries 512Wh and delivers 500W of continuous
output — enough to run your full home setup without touching the grid.

⚡ X-Boost up to 1000W for higher-draw devices
🔌 Multiple ports — SA plug, USB-C 100W, USB-A, DC, and more
⏱ Full charge in 60 minutes
📱 Monitor and control via app

Swipe to see what it can do →

Available now at caltech.co.za — link in bio.

Address

35 Melda Road
Randburg
2195

Opening Hours

Monday 08:00 - 16:00
Tuesday 08:00 - 16:00
Wednesday 08:00 - 16:00
Thursday 08:00 - 16:00
Friday 08:00 - 16:00

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+27650838726

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