{"product_id":"renogy-pro-12v-135ah-underseat-smart-lithium-battery","title":"Renogy Pro 12V 135Ah Underseat Smart Lithium Battery","description":"\u003ch2\u003eShort Product Summary\u003c\/h2\u003e\u003cp\u003eThe Renogy Pro 12V 135Ah Underseat Smart Lithium Battery packs 1,728 Wh of LiFePO4 capacity into a DIN-type underseat case designed to drop into the factory battery location in a motorhome or van conversion. It has built-in Bluetooth, a self-heating element for cold-weather charging, and a 60-feature BMS with active cell balancing.\u003c\/p\u003e\u003ch2\u003eWhy This Product\u003c\/h2\u003e\u003cp\u003eThe hardest part of a lithium upgrade in a motorhome is usually not the battery, it is finding somewhere to put it. This one is built specifically for the underseat DIN battery box that most European-built motorhomes already have, so a straight swap becomes realistic instead of a rebuild. You get more than four times the usable energy of a comparable lead-acid battery in the same space, at roughly half the weight, plus proper visibility of what it is doing through the app.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e135 Ah \/ 1,728 Wh capacity\u003c\/strong\u003e – substantial usable energy from a single underseat battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN-type underseat form factor\u003c\/strong\u003e – designed to fit the factory battery location in many motorhomes and van conversions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver 4,000 cycles\u003c\/strong\u003e – at 80% depth of discharge, so years of genuine touring service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in self-heating\u003c\/strong\u003e – charges safely in freezing conditions, with an operating range down to -20 °C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Bluetooth\u003c\/strong\u003e – live state of charge, current and health on your phone through the Renogy app.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced BMS with active cell balancing\u003c\/strong\u003e – 60 built-in safety features covering over- and under-charge, short circuit and thermal protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoughly half the weight of lead-acid\u003c\/strong\u003e – 14.5 kg for capacity that would otherwise cost you far more payload.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 chemistry\u003c\/strong\u003e – the safest and most stable lithium chemistry for leisure use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIdeal For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMotorhomes and van conversions with a factory underseat DIN battery box.\u003c\/li\u003e\n\u003cli\u003eUpgrading from lead-acid or AGM without rebuilding the battery compartment.\u003c\/li\u003e\n\u003cli\u003eOff-grid touring where payload and space are both tight.\u003c\/li\u003e\n\u003cli\u003eSystems running a compressor fridge, lighting, water pump and an inverter.\u003c\/li\u003e\n\u003cli\u003eAnyone touring high-altitude or winter routes where charging in the cold matters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eLocal Support from 4Matt Campers\u003c\/h2\u003e\u003cp\u003e4Matt Campers is a Renogy dealer in Cape Town, supporting customers across the Western Cape and delivering throughout South Africa. We can confirm whether this battery fits your vehicle's underseat compartment, advise on the charging changes a lithium upgrade needs, and pair it with the right DC-DC charger and solar. Bring your vehicle to the showroom or send us photos and measurements of the battery box.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e RBT12135LFP-SHBT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e RBT12135LFP-SHBT-G1-SA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal voltage:\u003c\/strong\u003e 12.8 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated capacity:\u003c\/strong\u003e 135 Ah (0.5C, 25 °C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal energy:\u003c\/strong\u003e 1,728 Wh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCell chemistry:\u003c\/strong\u003e Lithium Iron Phosphate (LiFePO4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCycle life:\u003c\/strong\u003e over 4,000 cycles at 80% depth of discharge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-heating:\u003c\/strong\u003e yes, integrated heating element for charging below freezing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating range:\u003c\/strong\u003e down to -20 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring:\u003c\/strong\u003e built-in Bluetooth with the Renogy app\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS:\u003c\/strong\u003e active cell balancing with 60 built-in safety features\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 355 × 177 × 190 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 14.5 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e DIN-type underseat\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e1 × Renogy Pro 12V 135Ah underseat smart lithium battery\u003c\/li\u003e\n\u003cli\u003e1 × user manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eOptional Fitment \u0026amp; Upgrade Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMeasure your underseat battery compartment against 355 × 177 × 190 mm before ordering; we are happy to check this with you.\u003c\/li\u003e\n\u003cli\u003eA lithium upgrade usually means revisiting your charging: alternator charging should go through a DC-DC charger, and mains chargers need a lithium profile.\u003c\/li\u003e\n\u003cli\u003eThe self-heating function is what makes cold-weather charging safe. Do not attempt to fast-charge any lithium battery below freezing without it.\u003c\/li\u003e\n\u003cli\u003ePair with a shunt or battery monitor if you want precise state-of-charge alongside the Bluetooth readout.\u003c\/li\u003e\n\u003cli\u003eAsk us about combining two of these for a larger bank if your compartment allows.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eComplete Your Setup\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/inverters-inverter-chargers\"\u003eInverters \u0026amp; Inverter Chargers\u003c\/a\u003e – turn this bank into 230 V mains power.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/solar-charge-controllers\"\u003eSolar Charge Controllers\u003c\/a\u003e – MPPT regulators with lithium charge profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/solar-panels\"\u003eSolar Panels\u003c\/a\u003e – rigid, flexible and portable panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/electrical-accessories\"\u003e12V Electrical Accessories\u003c\/a\u003e – DC-DC chargers, cable, fusing and monitors.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/renogy\"\u003eRenogy Range\u003c\/a\u003e – the full Renogy line-up at 4Matt Campers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill it fit my motorhome?\u003c\/strong\u003e\u003cbr\u003eIt is built to the DIN-type underseat format used by many European motorhomes, at 355 × 177 × 190 mm. Measure your compartment or send us photos and we will confirm before you order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does self-heating actually do?\u003c\/strong\u003e\u003cbr\u003eLithium batteries must not be charged below freezing. The integrated heater warms the cells first, so charging happens safely in cold conditions down to -20 °C.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long will it last?\u003c\/strong\u003e\u003cbr\u003eOver 4,000 cycles at 80% depth of discharge. For typical touring use that is many years of service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I just swap it for my old lead-acid battery?\u003c\/strong\u003e\u003cbr\u003ePhysically it is designed to, but the charging side usually needs attention: a DC-DC charger for alternator charging and a lithium profile on your mains charger. Talk to us first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a separate Bluetooth module?\u003c\/strong\u003e\u003cbr\u003eNo, Bluetooth is built in and works directly with the Renogy app.\u003c\/p\u003e","brand":"Renogy","offers":[{"title":"Default Title","offer_id":48299383488697,"sku":"RBT12135LFP-SHBT-G1-SA","price":14395.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/4587\/6409\/files\/1-135ah.jpg?v=1784790616","url":"https:\/\/www.4mattcampers.co.za\/products\/renogy-pro-12v-135ah-underseat-smart-lithium-battery","provider":"4Matt Campers","version":"1.0","type":"link"}