Anker 535 vs SOLIX C300 — day-use / ~500 Wh ladder
The SOLIX C300 is Anker’s current light day-use brick; the PowerHouse 535 is the older ~512 Wh portable-mid step. This page is size-class honesty — Wh, AC W, kg, and which job each fits — not a winner crown. Prices: check current listing.
Honesty first (read this)
- No invented Wh, watts, kg, or prices. 535 nameplate: 512 Wh LiFePO₄, 500 W AC (750 W surge), 7.6 kg / 16.75 lb per Anker support page + A1751 manual. C300: 288 Wh · 300 W · ~4.1 kg sibling cite from C300 vs C800 (Anker product page) — check label for your variant (AC vs DC-only C300 SKUs differ).
- 535 is legacy stock. Many 535 units are now used / refurbished / clearance — confirm warranty and cycle claims on the exact listing: buy used.
- Peak ≠ continuous. 500 W / 300 W are continuous AC ratings; surge figures are short spikes — peak vs continuous.
- Neither is a fridge-night default. Compressor fridge overnight usually wants more Wh — fridge runtime · 535 vs 757.
Nameplates below are from manufacturer product / support / manual pages (checked Oct 2026) — not QuietWatt lab tests or electrical / emergency-planning advice. Prices: check current listing. Estimates labelled.
Axes that actually differ
- Wh. 512 vs 288 Wh nameplate — roughly 1.8× the stored energy on paper (estimate; usable Wh is lower after inverter loss). What size.
- AC continuous. 500 vs 300 W — the 535 headroom matters for laptop + monitor + fan stacks. Check your load: specs explained.
- Weight / carry. 7.6 vs ~4.1 kg — C300 is the day-bag pick; 535 is a car-camp carry. Carry / Wh·kg.
- Recharge. 535: 120 W DC + 60 W USB-C input per manual; C300 is newer with faster charge marketing — confirm on the listing.
- Job. C300 = day use, desk, short trips; 535 = longer day / short light overnight. Budget ladder: under ~$500.
Side-by-side (feature class)
Not a sponsored ranking and not a winner crown. Confirm every number on the live listing / label.
| Axis | Anker 535 PowerHouse | Anker SOLIX C300 |
|---|---|---|
| Capacity | 512 Wh LiFePO₄ (Anker) | 288 Wh LiFePO₄ (sibling cite) — check label |
| AC output | 500 W continuous · 750 W surge (Anker) | 300 W (sibling cite) — check listing |
| Weight | 7.6 kg / 16.75 lb (Anker) | ~4.1 kg (sibling cite) |
| Typical job | Longer day, CPAP-light nights (power-saving off per manual), laptop stacks | Day trips, desk bridge, phones / laptop / lights |
| Status | Legacy — used / clearance listings common | Current SOLIX line |
| Price | Check current listing | Check current listing |
Models QuietWatt cites (confirm listing)
Filter by class / job. Approx. USD: check current listing.
| Model | Wh · notes | Why it lands here | Approx. USD |
|---|---|---|---|
| Anker 535 PowerHouse (512 Wh) Legacy mid | 512 Wh · 500 W AC · 7.6 kg (Anker support / manual) | More Wh per trip when weight is fine. Used caution: buy used. | Check current listing |
| Anker SOLIX C300 Day use | 288 Wh · 300 W · ~4.1 kg (sibling cite) — check label | Lighter day-use brick. Sibling: C300 vs C800. | Check current listing |
| Anker SOLIX C800 class Step-up | 768 Wh class (Anker) — check listing | When neither covers the night. See 521 vs C800. | Check current listing |
Which job each one wins
C300 wins
535 wins
Neither — step up
Where to buy (affiliate placeholders)
Tracked affiliate links will replace these placeholders once QuietWatt is enrolled in each program (TBD). Until then, use the official product URLs above. 535 / C300 Wh / W / kg / prices: confirm on the live listing.
Placeholder anchors: #aff-ecoflow, #aff-bluetti,
#aff-anker, #aff-jackery, #aff-amazon.