{"product_id":"sherpa-base-5-0-extra-battery","title":"Sherpa BASE 5.0-Extra Battery","description":"\u003cdiv class=\"cmnav-pp\"\u003e\n\n  \u003c!-- ===== HERO ===== --\u003e\n  \u003csection class=\"pp-hero\"\u003e\n    \u003cdiv class=\"pp-hero__copy\"\u003e\n      \u003cspan class=\"pp-eyebrow\"\u003eBASE 5.0-EB Smart Expansion Battery\u003c\/span\u003e\n      \u003ch2\u003eHigh-capacity expansion battery for BASE 5.0 off-grid \u0026amp; home backup systems\u003c\/h2\u003e\n      \u003cp\u003eThe BASE 5.0-EB is a user-friendly, high-capacity Smart Expansion Battery designed to add significant energy storage to your existing BASE 5.0 system. Built for off-grid living and home backup, the easy link-up system lets you combine up to 15 units for massive energy reserves.\u003c\/p\u003e\n      \u003cdiv class=\"pp-badges\"\u003e\n        \u003cspan class=\"pp-badge pp-badge--gold\"\u003e5048Wh Added Capacity\u003c\/span\u003e\n        \u003cspan class=\"pp-badge\"\u003eLiFePO₄ Battery\u003c\/span\u003e\n        \u003cspan class=\"pp-badge\"\u003e2 Link Ports\u003c\/span\u003e\n        \u003cspan class=\"pp-badge\"\u003eRequires BASE 5.0 Host\u003c\/span\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"pp-hero__image\"\u003e\n      \u003cimg src=\"https:\/\/www.sherpapower.co.uk\/cdn\/shop\/files\/PRO_EB_sml.jpg?v=1775564800\u0026amp;width=1000\" alt=\"BASE 5.0-EB Smart Expansion Battery\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== STATS ===== --\u003e\n  \u003csection class=\"pp-stats\"\u003e\n    \u003cdiv class=\"pp-stat\"\u003e\n\u003cspan class=\"pp-stat__num\"\u003e5048Wh\u003c\/span\u003e\u003cspan class=\"pp-stat__label\"\u003eAdded energy capacity\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"pp-stat\"\u003e\n\u003cspan class=\"pp-stat__num\"\u003e3500+\u003c\/span\u003e\u003cspan class=\"pp-stat__label\"\u003eBattery cycles to 80%\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"pp-stat\"\u003e\n\u003cspan class=\"pp-stat__num\"\u003e~3.5h\u003c\/span\u003e\u003cspan class=\"pp-stat__label\"\u003eFull charge via host\u003c\/span\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"pp-stat\"\u003e\n\u003cspan class=\"pp-stat__num\"\u003e80,640Wh\u003c\/span\u003e\u003cspan class=\"pp-stat__label\"\u003eMax system capacity\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== IMPORTANT COMPATIBILITY CALLOUT ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-warn\"\u003e\n\u003cstrong\u003eImportant — host unit required:\u003c\/strong\u003e The BASE 5.0-EB is an \u003cstrong\u003eexpansion battery\u003c\/strong\u003e and does not operate on its own. It must be connected to a BASE 5.0 host unit using the supplied link cable. The host manages all charging and power output; the BASE 5.0-EB simply extends the system’s energy reserve.\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== BUILT FOR SCALABLE POWER ===== --\u003e\n  \u003csection class=\"pp-section pp-two\"\u003e\n    \u003cdiv class=\"pp-two__panel\"\u003e\n      \u003ch3\u003eBuilt for serious, scalable off-grid power\u003c\/h3\u003e\n      \u003cp\u003eDesigned for users who need more runtime than a single unit can deliver — extended off-grid stays, whole-home backup, or demanding site power requirements.\u003c\/p\u003e\n      \u003cul class=\"pp-list\"\u003e\n        \u003cli\u003eAdds substantial energy reserve to any BASE 5.0 system\u003c\/li\u003e\n        \u003cli\u003eIdeal for extended off-grid living and power-cut backup\u003c\/li\u003e\n        \u003cli\u003eAccepts significant solar and hybrid renewable input via the host unit\u003c\/li\u003e\n        \u003cli\u003eLink up to \u003cstrong\u003e15 units\u003c\/strong\u003e for massive total storage\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"pp-two__image\"\u003e\n      \u003cimg src=\"https:\/\/www.sherpapower.co.uk\/cdn\/shop\/files\/PRO_EB_sml.jpg?v=1775564800\u0026amp;width=1000\" alt=\"BASE 5.0-EB expandable battery setup\" loading=\"lazy\"\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== LiFePO4 ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-section-head\"\u003e\u003ch3\u003eLong-life LiFePO₄ battery technology\u003c\/h3\u003e\u003c\/div\u003e\n    \u003cp\u003eThe BASE 5.0-EB uses an automotive-grade lithium iron phosphate (LiFePO₄) battery, chosen for long service life, thermal stability and strong performance under demanding loads.\u003c\/p\u003e\n    \u003cdiv class=\"pp-note\"\u003eThe battery can be cycled approximately \u003cstrong\u003e3,500 times\u003c\/strong\u003e before its original capacity is reduced to 80% — delivering a long usable lifespan when operated correctly.\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== EXPANDABLE SYSTEM CAPACITY ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-section-head\"\u003e\u003ch3\u003eExpand your system up to 80,640Wh\u003c\/h3\u003e\u003c\/div\u003e\n    \u003cp\u003eEach BASE 5.0-EB adds 5048Wh of usable capacity. Link up to \u003cstrong\u003e15 units\u003c\/strong\u003e alongside a BASE 5.0 host and the total system reaches a massive \u003cstrong\u003e80,640Wh\u003c\/strong\u003e — enough for extended off-grid stays or meaningful home backup.\u003c\/p\u003e\n    \u003cul class=\"pp-list\"\u003e\n      \u003cli\u003eAdd one BASE 5.0-EB for near-double the runtime of a host-only setup\u003c\/li\u003e\n      \u003cli\u003eCombine up to \u003cstrong\u003e15 BASE 5.0-EB units\u003c\/strong\u003e for full system scaling\u003c\/li\u003e\n      \u003cli\u003ePerfect for motorhomes, caravans, off-grid cabins, work sites and home backup\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== LINK PORTS ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-section-head\"\u003e\u003ch3\u003eTwo link ports for daisy-chain expansion\u003c\/h3\u003e\u003c\/div\u003e\n    \u003cp\u003eThe BASE 5.0-EB has two link ports: one to connect to your BASE 5.0 host (or another EB in the chain) and one to add a further BASE 5.0-EB. Once the linked units have balanced, the system shares both charging and discharge power across all connected batteries.\u003c\/p\u003e\n    \u003cul class=\"pp-list\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003e2 × Link ports\u003c\/strong\u003e — one upstream, one downstream\u003c\/li\u003e\n      \u003cli\u003eAutomatic power sharing once linked units have balanced\u003c\/li\u003e\n      \u003cli\u003eCharge and discharge are managed at the system level by the host\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== CHARGING ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-section-head\"\u003e\u003ch3\u003eCharging\u003c\/h3\u003e\u003c\/div\u003e\n    \u003cp\u003eThe BASE 5.0-EB \u003cstrong\u003eonly charges when linked to a BASE 5.0 host unit\u003c\/strong\u003e. Whichever charging method you use on the host — AC mains, solar, vehicle or generator — the host feeds charge to the BASE 5.0-EB through the link cable.\u003c\/p\u003e\n    \u003cul class=\"pp-list\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003eAC charging (via host):\u003c\/strong\u003e approximately 3.5 hours from 0–100% when the host is connected to mains or maximum solar input\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSolar \/ renewable (via host):\u003c\/strong\u003e charges from the host’s MPPT controller at maximum renewable throughput\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eNo direct input on the EB:\u003c\/strong\u003e all charging is managed by the host unit\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cdiv class=\"pp-note\"\u003eIf you don’t already own a BASE 5.0 host unit, the BASE 5.0-EB will not charge or output power on its own. Please make sure your order includes a host unit if this is your first battery in the system.\u003c\/div\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== SAFETY ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-section-head\"\u003e\u003ch3\u003eBuilt-in battery safeguards\u003c\/h3\u003e\u003c\/div\u003e\n    \u003cp\u003eIntegrated protections help preserve battery longevity and keep operation safe throughout the charge\/discharge cycle.\u003c\/p\u003e\n    \u003cul class=\"pp-list\"\u003e\n      \u003cli\u003eOverheating protection\u003c\/li\u003e\n      \u003cli\u003eLow-charge protection\u003c\/li\u003e\n      \u003cli\u003eDeep-discharge limiting to preserve battery longevity\u003c\/li\u003e\n      \u003cli\u003eTemperature-aware charge and discharge behaviour\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== SPEC TABLE ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-section-head\"\u003e\u003ch3\u003eTechnical specification\u003c\/h3\u003e\u003c\/div\u003e\n    \u003ctable class=\"pp-spec\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eSmart Expansion Battery (requires BASE 5.0 host)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eAdded capacity\u003c\/td\u003e\n\u003ctd\u003e5048Wh per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eBattery chemistry\u003c\/td\u003e\n\u003ctd\u003eAutomotive-grade LiFePO₄ lithium iron phosphate\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eBattery life\u003c\/td\u003e\n\u003ctd\u003eApprox. 3,500 cycles before original capacity reduces to 80%\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMaximum system capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 80,640Wh with 15 BASE 5.0-EB units linked to a BASE 5.0 host\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eLink ports\u003c\/td\u003e\n\u003ctd\u003e2 (upstream to host or previous EB, downstream to next EB)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCharging source\u003c\/td\u003e\n\u003ctd\u003eOnly via the linked BASE 5.0 host unit\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCharging time\u003c\/td\u003e\n\u003ctd\u003eApprox. 3.5 hours from 0–100% via host on AC mains or full solar input\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003ePower sharing\u003c\/td\u003e\n\u003ctd\u003eAutomatic charge and discharge balancing across linked units\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eBattery protection\u003c\/td\u003e\n\u003ctd\u003eOverheating, low-charge and deep-discharge protection\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== INCLUDED ===== --\u003e\n  \u003csection class=\"pp-section\"\u003e\n    \u003cdiv class=\"pp-section-head\"\u003e\u003ch3\u003eWhat's included\u003c\/h3\u003e\u003c\/div\u003e\n    \u003cul class=\"pp-list\"\u003e\n      \u003cli\u003e1 × BASE 5.0-EB Smart Expansion Battery\u003c\/li\u003e\n      \u003cli\u003e1 × 50 cm link cable\u003c\/li\u003e\n      \u003cli\u003e1 × user manual\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp class=\"pp-small\"\u003ePlease note: a BASE 5.0 host unit is \u003cstrong\u003enot included\u003c\/strong\u003e with this item and must be purchased separately if you don’t already have one.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n  \u003c!-- ===== FULFILMENT NOTICE ===== --\u003e\n  \u003csection class=\"pp-section pp-fulfil\"\u003e\n    \u003ch3\u003eImportant fulfilment, delivery \u0026amp; warranty information\u003c\/h3\u003e\n    \u003cp\u003eTo keep things fully transparent, this product is supplied and fulfilled by one of our trusted UK-based third-party partners. It is not stocked directly at our own premises.\u003c\/p\u003e\n    \u003cul class=\"pp-list\"\u003e\n      \u003cli\u003e\n\u003cstrong\u003ePartner-fulfilled product:\u003c\/strong\u003e dispatched directly by the supplier from their own fulfilment operation\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDelivery \u0026amp; tracking:\u003c\/strong\u003e delivery times and courier arrangements may vary depending on supplier stock, item size and destination — tracking details will be provided once available\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eManufacturer-backed warranty:\u003c\/strong\u003e warranty support, diagnostics and technical repairs may be handled directly by the manufacturer or authorised supplier as they are the product specialists\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eSupport from us:\u003c\/strong\u003e if you experience any issue, please contact us first — we will help coordinate the next steps with the supplier where required\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp class=\"pp-small\"\u003eYour statutory rights under UK consumer law are not affected. Where applicable, we will continue to act as your point of contact for order-related queries, returns guidance and support coordination.\u003c\/p\u003e\n  \u003c\/section\u003e\n\n\u003c\/div\u003e","brand":"Sherpa Power","offers":[{"title":"Default Title","offer_id":57101347291509,"sku":"SP-KE5040BA-EB","price":2349.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0120\/6458\/7876\/files\/Sherpa-BASE-5000W-extra-battery-pack-01.jpg?v=1777064605","url":"https:\/\/cmnav.co.uk\/products\/sherpa-base-5-0-extra-battery","provider":"C \u0026 M Navigation Systems ","version":"1.0","type":"link"}