{"product_id":"ecoflow-wave-3-add-on-battery","title":"EcoFlow WAVE 3 Add-On Battery | 1024Wh","description":"\u003cstyle\u003e\n\/* ===== HB21 BATTERY PRODUCT PAGE CSS (house style) ===== *\/\n.hb21-spec-wrap { max-width: 1100px; margin: 0 auto 40px auto; padding: 0 20px; text-align: center; }\n.hb21-spec-wrap h2, .hb21-spec-wrap h3, .hb21-spec-wrap p, .hb21-spec-wrap li { text-align: center; }\n.hb21-product-intro { max-width: 920px; margin: 0 auto 30px auto; }\n.hb21-product-intro h2 { margin: 0 0 14px 0; font-size: 2rem; line-height: 1.2; }\n.hb21-product-intro p { margin: 0 auto 14px auto; line-height: 1.7; max-width: 900px; }\n.hb21-spec-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 30px; text-align: left; }\n.hb21-spec-card { background: #f7f7f7; border-radius: 14px; padding: 24px; text-align: left; }\n.hb21-spec-card h3 { margin: 0 0 16px 0; font-size: 1.25rem; text-align: left; }\n.hb21-spec-card ul { list-style: none; padding: 0; margin: 0; }\n.hb21-spec-card li { margin: 0 0 10px 0; line-height: 1.55; text-align: left; }\n.hb21-spec-card strong { font-weight: 700; }\n.hb21-warranty-note { margin-top: 28px; font-size: 1rem; line-height: 1.6; text-align: left; }\n.hb21-section { max-width: 1100px; margin: 0 auto; padding: 34px 20px; text-align: center; }\n.hb21-section h2, .hb21-section h3 { font-size: 2rem; line-height: 1.2; font-weight: 700; margin: 0 0 14px 0; text-align: center; }\n.hb21-section p { max-width: 900px; margin: 0 auto 14px auto; line-height: 1.65; text-align: center; }\n.hb21-section a, .hb21-faq-item a { color: #0066cc; text-decoration: underline; }\n.hb21-footnote { font-size: 0.9rem; color: #555; margin-top: 10px; }\n.hb21-image-full { max-width: 1100px; margin: 0 auto; padding: 14px 20px; }\n.hb21-image-full img { display: block; width: 100%; height: auto; margin: 0 auto; border-radius: 8px; }\n.hb21-video-wrap { max-width: 1100px; margin: 0 auto; padding: 14px 20px; }\n.hb21-video-wrap .hb21-video-embed { position: relative; width: 100%; padding-bottom: 56.25%; height: 0; overflow: hidden; border-radius: 8px; }\n.hb21-video-wrap .hb21-video-embed iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }\n.hb21-card-grid { max-width: 1100px; margin: 0 auto; padding: 14px 20px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }\n.hb21-card { text-align: center; }\n.hb21-card img { display: block; width: 100%; height: auto; border-radius: 8px; margin-bottom: 10px; object-fit: cover; aspect-ratio: 4 \/ 3; }\n.hb21-card h3 { margin: 0 0 6px 0; font-size: 1.1rem; line-height: 1.3; text-align: center; }\n.hb21-card p { margin: 0; line-height: 1.5; font-size: 0.95rem; text-align: center; }\n.hb21-card-compact h3 { font-size: 0.95rem; margin-bottom: 4px; }\n.hb21-card-compact p { font-size: 0.85rem; line-height: 1.4; }\n.hb21-faq-wrap { max-width: 980px; margin: 40px auto 20px auto; padding: 0 20px; text-align: center; }\n.hb21-faq-wrap h2 { font-size: 2rem; line-height: 1.2; margin-bottom: 20px; text-align: center; }\n.hb21-faq-item { background: #f7f7f7; border-radius: 12px; padding: 18px 20px; margin-bottom: 14px; text-align: left; }\n.hb21-faq-item h3 { margin: 0 0 8px 0; font-size: 1.1rem; line-height: 1.4; text-align: left; }\n.hb21-faq-item p { margin: 0; line-height: 1.65; text-align: left; }\n@media (max-width: 989px) {\n  .hb21-spec-grid { grid-template-columns: 1fr; }\n  .hb21-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }\n  .hb21-product-intro h2, .hb21-section h2, .hb21-section h3, .hb21-faq-wrap h2 { font-size: 1.7rem; }\n}\n@media (max-width: 749px) { .hb21-card-grid { grid-template-columns: 1fr; } }\n\u003c\/style\u003e\n\u003cdiv class=\"hb21-spec-wrap\"\u003e\n\u003cdiv class=\"hb21-product-intro\"\u003e\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe EcoFlow WAVE 3 Add-On Battery is the plug-in battery for the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-wave-3-portable-air-conditioner\" title=\"EcoFlow WAVE 3 Portable Air Conditioner\"\u003eEcoFlow WAVE 3 Portable Air Conditioner\u003c\/a\u003e, built for tents, campervans, boats and baches where there is no wall socket to run from. It stores 1024Wh in LFP cells. EcoFlow rates it at up to 8 hours of cordless running in Eco Mode under optimal conditions, enough to carry the WAVE 3 through a night.\u003c\/p\u003e\n\u003cp\u003eRecharging is flexible. The battery takes up to 400W of solar or up to 200W from a vehicle outlet through its XT60i port, and it charges from the wall through the WAVE 3. On the road it charges from an EcoFlow 500W or 800W Alternator Charger. A 140W USB-C port and an 18W USB-A port run laptops and phones from the same battery. The WAVE 3 sits on top of the battery, locks in with a click and connects with the cable in the box. If you are unsure how it fits your setup, we're happy to help before you buy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-spec-grid\"\u003e\n\u003cdiv class=\"hb21-spec-card\"\u003e\n\u003ch3\u003eWAVE 3 Add-On Battery Specs:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 1024Wh (51.2V, 20Ah)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Chemistry:\u003c\/strong\u003e Lithium Iron Phosphate (LiFePO4 \/ LFP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle Life:\u003c\/strong\u003e 4000 cycles to 80% capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9.7kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 516 x 281 x 111mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP Rating:\u003c\/strong\u003e IP65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Output:\u003c\/strong\u003e 858W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-C Output:\u003c\/strong\u003e 140W max (5V, 9V, 12V and 15V at 3A; 20V and 28V at 5A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB-A Output:\u003c\/strong\u003e 18W max (5V at 2.4A, 9V at 2A, 12V at 1.5A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Input:\u003c\/strong\u003e 1000W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar Input (XT60i):\u003c\/strong\u003e 11-60V, 13A max, 400W max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCar Input (XT60i):\u003c\/strong\u003e 12V or 24V, 8A max, 200W max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra Battery Port:\u003c\/strong\u003e XT150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRun Time with the WAVE 3:\u003c\/strong\u003e 2 to 8 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-spec-card\"\u003e\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x EcoFlow WAVE 3 Add-On Battery\u003c\/li\u003e\n\u003cli\u003e1 x EcoFlow WAVE 3 Add-On Battery Cable\u003c\/li\u003e\n\u003cli\u003e1 x EcoFlow Car Charging Cable\u003c\/li\u003e\n\u003cli\u003e1 x Safety Instructions, Quick Start Guide and Warranty Card\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0528\/2424\/4410\/files\/ecoflow-wave-3-add-on-battery-user-manual.pdf?v=1791866942\" title=\"Download the EcoFlow WAVE 3 Add-On Battery user manual (PDF)\" target=\"_blank\" rel=\"noopener\"\u003eDownload the EcoFlow WAVE 3 Add-On Battery user manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-image-full\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0528\/2424\/4410\/files\/ecoflow-wave-3-add-on-battery-hero.jpg?v=1791866945\" alt=\"An EcoFlow WAVE 3 Portable Air Conditioner docked on its Add-On Battery on a sandy beach, with a folding solar panel propped up behind it and the sea in the background\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eUp to 8 Hours of Cordless Running\u003c\/h2\u003e\n\u003cp\u003eThe battery stores 1024Wh, and EcoFlow rates it at 2 to 8 hours of running with the WAVE 3, depending on the mode. The 8-hour figure applies in Eco Mode under optimal conditions. That covers a night in a tent or a campervan with no generator and no powered site.\u003c\/p\u003e\n\u003cp class=\"hb21-footnote\"\u003eRun time varies with the mode, the temperature you set and the conditions around the unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eFour Ways to Recharge\u003c\/h2\u003e\n\u003cp\u003eSolar panels charge the battery at up to 400W through the XT60i port, which accepts 11V to 60V at up to 13A. The same port takes up to 200W from a 12V or 24V vehicle outlet, using the car charging cable in the box. Wall power reaches the battery through the WAVE 3 when the two are connected. An EcoFlow Alternator Charger charges it from the vehicle while you drive.\u003c\/p\u003e\n\u003cp\u003eThe battery accepts up to 1000W in total, so you can pick the source that suits where you are parked.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eLFP Cells Rated for 4000 Cycles\u003c\/h2\u003e\n\u003cp\u003eThe cells are lithium iron phosphate, rated to keep 80% or more of their capacity after 4000 cycles. EcoFlow puts that at up to 10 years of daily use. The case is rated IP65.\u003c\/p\u003e\n\u003cp class=\"hb21-footnote\"\u003eEcoFlow advises against immersing the battery or leaving it wet, and recommends a waterproof bag in rainy conditions or near water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003e140W USB-C and 18W USB-A Built In\u003c\/h2\u003e\n\u003cp\u003eThe battery has its own USB-C and USB-A ports for laptops, phones and cameras. The USB-C port delivers up to 140W and supports PD 3.1 and QC 3.0. The USB-A port delivers up to 18W and supports QC 3.0. Both switch on with the battery, whether or not the WAVE 3 is attached.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eClicks On Without Tools\u003c\/h2\u003e\n\u003cp\u003eLine the WAVE 3 up with the alignment mark on top of the battery, set it down and push it forward until it clicks. Plug in the Add-On Battery Cable and the two are joined. Holding the power button on either unit switches both on. To separate them, switch off, unplug the cable, press the unlock button and slide the WAVE 3 back.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\" style=\"padding-bottom: 0;\"\u003e\n\u003ch3 style=\"font-size: 1.5rem; text-align: center; margin: 0 0 6px 0;\"\u003eWhat's in the Box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-image-full\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0528\/2424\/4410\/files\/ecoflow-wave-3-add-on-battery-witb-image.webp?v=1791866945\" alt=\"What's in the box for the EcoFlow WAVE 3 Add-On Battery: the battery, the Add-On Battery Cable, the car charging cable, and the safety instructions, quick start guide and warranty card\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003ePairs Well With\u003c\/h2\u003e\n\u003cp\u003eThe WAVE 3 Add-On Battery is designed to power the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-wave-3-portable-air-conditioner\" title=\"EcoFlow WAVE 3 Portable Air Conditioner\"\u003eEcoFlow WAVE 3 Portable Air Conditioner\u003c\/a\u003e, giving it 2 to 8 hours of cordless running. For charging on the road, the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-500w-alternator-charger\" title=\"EcoFlow 500W Alternator Charger\"\u003eEcoFlow 500W Alternator Charger\u003c\/a\u003e connects to the battery's XT60i port through an XT60 output cable. The \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-alternator-charger-800w\" title=\"EcoFlow 800W Alternator Charger\"\u003eEcoFlow 800W Alternator Charger\u003c\/a\u003e connects to the XT150 extra battery port through an XT150 output cable and supports charging in both directions with the vehicle battery. For solar charging, the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-mc4-to-xt60i-solar-cable-3-5m\" title=\"EcoFlow MC4 to XT60i Solar Cable\"\u003eEcoFlow MC4 to XT60i Solar Cable\u003c\/a\u003e connects MC4 solar panels to the same XT60i port. If you want us to confirm the fit for your vehicle or panels before you order, just ask.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-wrap\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eWhich air conditioner does this battery fit?\u003c\/h3\u003e\n\u003cp\u003eIt is designed to power the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-wave-3-portable-air-conditioner\" title=\"EcoFlow WAVE 3 Portable Air Conditioner\"\u003eEcoFlow WAVE 3 Portable Air Conditioner\u003c\/a\u003e. The WAVE 3 sits on top of the battery and locks in place with a click, then the Add-On Battery Cable from the box joins the two. No tools are needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eHow long does it run the WAVE 3?\u003c\/h3\u003e\n\u003cp\u003eEcoFlow rates the battery at 2 to 8 hours of running, depending on the mode. The 8-hour figure is for Eco Mode under optimal conditions. Run time drops in the higher cooling and heating modes and in hotter or colder surroundings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eHow do I recharge it?\u003c\/h3\u003e\n\u003cp\u003eThere are four ways. Solar panels deliver up to 400W through the XT60i port. A vehicle outlet delivers up to 200W through the same port, using the car charging cable in the box. Wall power reaches the battery through the WAVE 3 when the two are connected and the WAVE 3 is plugged in. An EcoFlow Alternator Charger charges it from the vehicle while you drive. The battery accepts up to 1000W in total.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eCan I charge it from solar panels?\u003c\/h3\u003e\n\u003cp\u003eYes. The XT60i port accepts 11V to 60V at up to 13A, for a maximum of 400W. Keep the combined open circuit voltage of your panels within 60V and the short circuit current within 13A. An \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-mc4-to-xt60i-solar-cable-3-5m\" title=\"EcoFlow MC4 to XT60i Solar Cable\"\u003eEcoFlow MC4 to XT60i Solar Cable\u003c\/a\u003e connects MC4 panels to the port. Real-world solar output varies with sun angle, weather and season.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eCan it charge while I drive?\u003c\/h3\u003e\n\u003cp\u003eYes. The car charging cable in the box plugs into a 12V or 24V vehicle outlet and delivers up to 200W. Connect it after the engine has started. For faster charging on the road, the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-500w-alternator-charger\" title=\"EcoFlow 500W Alternator Charger\"\u003eEcoFlow 500W Alternator Charger\u003c\/a\u003e connects to the XT60i port through an XT60 output cable, and the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-alternator-charger-800w\" title=\"EcoFlow 800W Alternator Charger\"\u003eEcoFlow 800W Alternator Charger\u003c\/a\u003e connects to the XT150 extra battery port through an XT150 output cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eCan I use the USB ports without the air conditioner?\u003c\/h3\u003e\n\u003cp\u003eYes. The USB ports switch on when the battery is powered on. The USB-C port delivers up to 140W with PD 3.1 and QC 3.0, and the USB-A port delivers up to 18W with QC 3.0. Use a cable that supports the same standard to get the full output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eIs it waterproof?\u003c\/h3\u003e\n\u003cp\u003eThe battery is rated IP65. EcoFlow still advises against immersing it or leaving it wet, and recommends a waterproof bag in rainy conditions or near water. If it does get wet, stop using it and let us know.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eHow should I store it between trips?\u003c\/h3\u003e\n\u003cp\u003eKeep it somewhere dry, cool and well ventilated. For long-term storage, EcoFlow advises charging it fully and then discharging it to 60% once every 3 months. A battery left uncharged and unused for more than 6 months is not covered by the warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eWhat warranty does it carry?\u003c\/h3\u003e\n\u003cp\u003eThe WAVE 3 Add-On Battery carries a 2-year warranty in New Zealand. The LFP cells are rated to keep 80% or more of their capacity after 4000 cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"EcoFlow","offers":[{"title":"Default Title","offer_id":50723258269882,"sku":"EFWAVE3-EB","price":1079.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/2424\/4410\/files\/ecoflow-wave-3-add-on-battery-gallery-1.png?v=1791866951","url":"https:\/\/hb21.co.nz\/products\/ecoflow-wave-3-add-on-battery","provider":"HB21","version":"1.0","type":"link"}