{"product_id":"ecoflow-delta-3-max-plus-extra-battery-2048wh","title":"EcoFlow DELTA 3 Max Plus Extra Battery | 2048Wh","description":"\u003cstyle\u003e\n\/* ===== ECOFLOW DELTA 3 MAX PLUS SMART EXTRA BATTERY PRODUCT PAGE CSS ===== *\/\n.hb21-spec-wrap {\n  max-width: 1100px;\n  margin: 0 auto 40px auto;\n  padding: 0 20px;\n  text-align: center;\n}\n\n.hb21-spec-wrap h2,\n.hb21-spec-wrap h3,\n.hb21-spec-wrap p,\n.hb21-spec-wrap li {\n  text-align: center;\n}\n\n.hb21-product-intro {\n  max-width: 920px;\n  margin: 0 auto 30px auto;\n}\n\n.hb21-product-intro h2 {\n  margin: 0 0 14px 0;\n  font-size: 2rem;\n  line-height: 1.2;\n}\n\n.hb21-product-intro p {\n  margin: 0 auto 14px auto;\n  line-height: 1.7;\n  max-width: 900px;\n}\n\n.hb21-spec-grid {\n  display: grid;\n  grid-template-columns: repeat(2, minmax(0, 1fr));\n  gap: 24px;\n  margin-top: 30px;\n  text-align: left;\n}\n\n.hb21-spec-card {\n  background: #f7f7f7;\n  border-radius: 14px;\n  padding: 24px;\n  text-align: left;\n}\n\n.hb21-spec-card h3 {\n  margin: 0 0 16px 0;\n  font-size: 1.25rem;\n  text-align: left;\n}\n\n.hb21-spec-card ul {\n  list-style: none;\n  padding: 0;\n  margin: 0;\n}\n\n.hb21-spec-card li {\n  margin: 0 0 10px 0;\n  line-height: 1.55;\n  text-align: left;\n}\n\n.hb21-spec-card strong {\n  font-weight: 700;\n}\n\n.hb21-spec-card a {\n  color: #0066cc;\n  text-decoration: underline;\n}\n\n.hb21-warranty-note {\n  margin-top: 20px;\n  font-size: 1rem;\n  line-height: 1.6;\n  text-align: left;\n}\n\n.hb21-section {\n  max-width: 1100px;\n  margin: 0 auto;\n  padding: 34px 20px;\n  text-align: center;\n}\n\n.hb21-section h2,\n.hb21-section h3 {\n  font-size: 2rem;\n  line-height: 1.2;\n  font-weight: 700;\n  margin: 0 0 14px 0;\n  text-align: center;\n}\n\n.hb21-section p {\n  max-width: 900px;\n  margin: 0 auto 14px auto;\n  line-height: 1.65;\n  text-align: center;\n}\n\n.hb21-section a,\n.hb21-faq-item a {\n  color: #0066cc;\n  text-decoration: underline;\n}\n\n.hb21-faq-wrap {\n  max-width: 980px;\n  margin: 40px auto 20px auto;\n  padding: 0 20px;\n  text-align: center;\n}\n\n.hb21-faq-wrap h2 {\n  font-size: 2rem;\n  line-height: 1.2;\n  margin-bottom: 20px;\n  text-align: center;\n}\n\n.hb21-faq-item {\n  background: #f7f7f7;\n  border-radius: 12px;\n  padding: 18px 20px;\n  margin-bottom: 14px;\n  text-align: left;\n}\n\n.hb21-faq-item h3 {\n  margin: 0 0 8px 0;\n  font-size: 1.1rem;\n  line-height: 1.4;\n  text-align: left;\n}\n\n.hb21-faq-item p {\n  margin: 0;\n  line-height: 1.65;\n  text-align: left;\n}\n\n@media (max-width: 989px) {\n  .hb21-spec-grid {\n    grid-template-columns: 1fr;\n  }\n\n  .hb21-product-intro h2,\n  .hb21-section h2,\n  .hb21-section h3,\n  .hb21-faq-wrap h2 {\n    font-size: 1.7rem;\n  }\n}\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 DELTA 3 Max Plus Smart Extra Battery adds 2048Wh of LFP storage to your \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-delta-3-max-plus-portable-power-station-3000w-2048wh\" title=\"EcoFlow DELTA 3 Max Plus Portable Power Station\"\u003eEcoFlow DELTA 3 Max Plus\u003c\/a\u003e, doubling total system capacity from 2048Wh to 4096Wh. Plug it into the power station's Extra Battery Port using the included cable, and the system automatically detects and manages the second battery. No setup, no configuration, no separate charger.\u003c\/p\u003e\n\u003cp\u003eBuilt for home backup, freedom camping, motorhome power, and off-grid living, the extra battery gives you serious runtime when mains power isn't an option. Run a 65L fridge for over a week, keep essential appliances going through multi-day outages, or stay off-grid for longer without needing to recharge mid-trip. Add a second extra battery via the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-smart-extra-battery-expansion-adapter\" title=\"EcoFlow Smart Extra Battery Expansion Adapter\"\u003eEcoFlow Smart Extra Battery Expansion Adapter\u003c\/a\u003e to reach up to 10kWh of total system capacity on the DELTA 3 Max Plus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-spec-grid\"\u003e\n\u003cdiv class=\"hb21-spec-card\"\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 2048Wh (51.2V, 40Ah)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell Chemistry:\u003c\/strong\u003e LFP (LiFePO₄)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle Life:\u003c\/strong\u003e 4,000 cycles to 80% capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 16kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W x D x H):\u003c\/strong\u003e Approx. 494 x 239 x 196mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra Battery Port Output:\u003c\/strong\u003e 43.2V-57.6V, 100A max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra Battery Port Input:\u003c\/strong\u003e 43.2V-57.6V, 48A max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtections:\u003c\/strong\u003e Overvoltage, overload, overtemperature, short circuit, low temperature, low voltage, overcurrent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimal Operating Temperature:\u003c\/strong\u003e 20°C to 30°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharge Temperature:\u003c\/strong\u003e 0°C to 45°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge Temperature:\u003c\/strong\u003e -10°C to 45°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -10°C to 45°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApp Monitoring:\u003c\/strong\u003e Via the host power station and EcoFlow app\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 DELTA 3 Max Plus Smart Extra Battery\u003c\/li\u003e\n\u003cli\u003e1 x Extra Battery Cable\u003c\/li\u003e\n\u003cli\u003e1 x User Manual \/ Warranty Card\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 5-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"hb21-warranty-note\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Host power station sold separately. The extra battery only operates when connected to a compatible EcoFlow power station and is not a standalone unit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eDouble Your DELTA 3 Max Plus Capacity\u003c\/h2\u003e\n\u003cp\u003eThe DELTA 3 Max Plus has a standalone capacity of 2048Wh. Add this extra battery and total system capacity jumps to 4096Wh - enough to power a 250Wh-per-day camping fridge for over 16 days, or keep a router, modem, lights, laptop, and a few small appliances running through an extended power outage. The maximum AC output stays at 3000W, but your runtime doubles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003ePlug-and-Play Setup\u003c\/h2\u003e\n\u003cp\u003eNo setup, no configuration. Connect the extra battery to the DELTA 3 Max Plus Extra Battery Port using the included cable, turn it on, and the power station detects and manages it automatically. Charging and discharging happen through the host power station, so you only need one AC charger, one solar input, and one app to manage the entire system. The battery icon appears on the power station's screen once it's connected successfully.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eLFP Chemistry for Long-Term Reliability\u003c\/h2\u003e\n\u003cp\u003eLithium iron phosphate (LFP \/ LiFePO₄) cells offer a longer lifespan, better thermal stability, and improved safety compared to standard lithium-ion cells. The battery includes seven layers of protection covering overvoltage, overload, over temperature, short circuit, low temperature, low voltage, and overcurrent conditions. Built for daily use in NZ conditions, from baches to motorhomes to job sites.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eHome Backup and Off-Grid Runtime\u003c\/h2\u003e\n\u003cp\u003eFor NZ households facing winter outages, the extra battery gives you peace of mind. Paired with the DELTA 3 Max Plus and connected to essential loads, a 4096Wh system can run a fridge, internet router\/modem, lights, and device charging through a multi-day outage. For motorhome and freedom camping use, the doubled capacity means you can stay off-grid for several days without needing mains power or solar top-up, depending on your daily load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003eExpand Further with the Expansion Adapter\u003c\/h2\u003e\n\u003cp\u003eThe DELTA 3 Max Plus has one Extra Battery Port on the back, which connects one extra battery directly. To run two extra batteries at once and reach the full 10kWh maximum capacity, use the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-smart-extra-battery-expansion-adapter\" title=\"EcoFlow Smart Extra Battery Expansion Adapter\"\u003eEcoFlow Smart Extra Battery Expansion Adapter\u003c\/a\u003e. The adapter splits the single port into two outputs, letting you stack a second extra battery onto the same setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-section\"\u003e\n\u003ch2\u003ePairs Well With\u003c\/h2\u003e\n\u003cp\u003eThis extra battery is designed to pair with the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-delta-3-max-plus-portable-power-station-3000w-2048wh\" title=\"EcoFlow DELTA 3 Max Plus Portable Power Station\"\u003eEcoFlow DELTA 3 Max Plus\u003c\/a\u003e or \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-delta-3-ultra-plus-portable-power-station-3600w-3072wh\" title=\"EcoFlow DELTA 3 Ultra Plus Portable Power Station\"\u003eEcoFlow DELTA 3 Ultra Plus\u003c\/a\u003e. To run two extra batteries at the same time, add the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-smart-extra-battery-expansion-adapter\" title=\"EcoFlow Smart Extra Battery Expansion Adapter\"\u003eEcoFlow Smart Extra Battery Expansion Adapter\u003c\/a\u003e.\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 power station is this extra battery compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe DELTA 3 Max Plus Smart Extra Battery is compatible with the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-delta-3-max-plus-portable-power-station-3000w-2048wh\" title=\"EcoFlow DELTA 3 Max Plus Portable Power Station\"\u003eEcoFlow DELTA 3 Max Plus\u003c\/a\u003e and \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-delta-3-ultra-plus-portable-power-station-3600w-3072wh\" title=\"EcoFlow DELTA 3 Ultra Plus Portable Power Station\"\u003eEcoFlow DELTA 3 Ultra Plus\u003c\/a\u003e. It is not compatible with the DELTA 2, DELTA Pro, DELTA Pro 3, or RIVER series power stations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eCan I use this battery on its own without a power station?\u003c\/h3\u003e\n\u003cp\u003eNo. The DELTA 3 Max Plus Smart Extra Battery is an expansion module only and requires a compatible EcoFlow power station to function. It has no AC outlets, USB ports, or independent solar input.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eHow do I charge the extra battery?\u003c\/h3\u003e\n\u003cp\u003eThe extra battery charges automatically through the host power station. Connect it to your DELTA 3 Max Plus or DELTA 3 Ultra Plus using the included cable, then charge the power station via AC mains, solar panels, car charger, or alternator charger as you normally would. Both batteries charge together.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eCan I connect two extra batteries to the same power station?\u003c\/h3\u003e\n\u003cp\u003eYes, but you'll need the \u003ca href=\"https:\/\/hb21.co.nz\/products\/ecoflow-smart-extra-battery-expansion-adapter\" title=\"EcoFlow Smart Extra Battery Expansion Adapter\"\u003eEcoFlow Smart Extra Battery Expansion Adapter\u003c\/a\u003e. The DELTA 3 Max Plus and DELTA 3 Ultra Plus each have one Extra Battery Port, so the adapter is required to connect a second extra battery and reach the full expandable capacity (up to 10kWh on DELTA 3 Max Plus, up to 11kWh on DELTA 3 Ultra Plus).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb21-faq-item\"\u003e\n\u003ch3\u003eWhat warranty does the DELTA 3 Max Plus Smart Extra Battery have in NZ?\u003c\/h3\u003e\n\u003cp\u003eThe DELTA 3 Max Plus Smart Extra Battery includes a 5-year warranty in New Zealand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"EcoFlow","offers":[{"title":"Default Title","offer_id":45843763429562,"sku":"EFD3MP-EB","price":2389.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0528\/2424\/4410\/files\/ecoflow-ecoflow-delta-3-max-plus-smart-extra-battery-1194623378_2000x_5e88f6fb-ea21-456c-ab9e-c2b39ee17b38.webp?v=1778647050","url":"https:\/\/hb21.co.nz\/products\/ecoflow-delta-3-max-plus-extra-battery-2048wh","provider":"HB21","version":"1.0","type":"link"}