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Sunsynk W5.3 5.32kWh IP65 battery, black — product photo

Sunsynk · 5.32 kWh · IP65 battery pack (black)

Sunsynk W5.3 5.32kWh IP65 battery, black

The W5.3 in black is a 5.32kWh IP65 Sunsynk battery supplied with its cable sets. It earns its keep on retrofits, adding storage to a site that already runs a Sunsynk hybrid inverter without disturbing what is on the wall.

£1,290.38 ex VAT Out of stock
Pallet freight

Delivery in 3–5 working days (estimate). The dispatch clock starts at cleared payment.

Description

Retrofit work punishes messy ordering. The inverter and wiring are already on site, so what you want is the battery, the leads to connect it and nothing else. This pack keeps it that tight: battery plus cable sets under one part number. The black case sits comfortably next to dark hardware, the housing carries an IP65 rating, and 5.32kWh is a sensible first storage step for a typical household. If the customer later wants more, the same family scales without changing supplier.

Specification

BrandSunsynk
Part numberSUNSYNK-W5.3
Capacity5.32 kWh
PhaseSingle-phase
ConditionNew
CategoryBatteries · Li-ion Battery Pack
Delivery methodPallet freight (UN3480 Class 9 dangerous goods)

What it pairs with

Its natural partners are Sunsynk's own hybrid inverters, the ECCO models (SUN-3.6-ECCO, SUN-5.0-ECCO) among them, with the battery to battery cable pack medium (SUN-CABLE-MEDIUM) on hand where more than one unit goes in. Which inverters accept which batteries can shift with model and firmware revisions, so confirm the pairing on Sunsynk's current compatibility list before quoting.

One battery, one job: it stores energy and needs a compatible Sunsynk hybrid inverter to charge or discharge. Each unit holds 5.32kWh. For anything this page can't settle, ask the trade desk before ordering or consult a competent installer.

Last updated 2026-07-19

FAQ

Sunsynk SUNSYNK-W5.3 buying questions

The current ex-VAT trade price is printed on this page and applies to every buyer, with 20% VAT added when the invoice is raised. Quantity makes no difference to the rate: a single unit and a stack order carry the same price per battery, and there is no minimum order to meet.
Pallet freight only, because a lithium battery travels as UN3480 Class 9 dangerous goods with a carrier certified for it. Figure on 3–5 working days (estimate). The dispatch clock starts at cleared payment. It is a kerbside service, so plan for someone to be on site when the pallet lands.
Out of stock at the last catalogue update, and the count on this page comes from the live stock feed rather than a manual list. In stock means in stock; if the number reads zero, the trade desk can tell you the restock position for this part number.
UK trade buyers with a verified account: limited companies verify with a Companies House number, sole traders with a UTR, MCS or scheme number. No trade minimums — one unit at trade price, no annual-spend tiers.
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