UK Engineering. Next-Generation Off-Grid Power.
When you are deep off-grid in your campervan, motorhome, or boat, your battery bank is the heart of your entire system. Traditional lead-acid or AGM leisure batteries are heavy, slow to charge, and drop significantly in voltage before you even use half their stated capacity.
Teconnex Power Advanced LiFePO4 Leisure Batteries
The Teconnex Power Advanced Lithium () Leisure Battery range completely changes the game. Backed by a proud heritage of over 70 years of UK-based engineering excellence, Teconnex has developed a drop-in lithium solution that delivers maximum energy efficiency, exceptional longevity, and absolute safety in a lightweight package.
Why Choose Teconnex Advanced Lithium Batteries?
When building out an off-grid electrical system, your leisure battery is the foundation of your entire setup. While traditional AGM and lead-acid batteries have been the historical standard, they force massive compromises on weight, usable power, and overall lifespan.
Teconnex Power fundamentally changes your off-grid capabilities by combining premium cell chemistry with over 70 years of world-class British manufacturing heritage. Here is exactly why upgrading to a Teconnex Advanced Lithium battery is one of the smartest investments you can make for your vehicle:
6 Reasons To Fall In Love With Teconnex Lithium?
Genuine 95% Usable Capacity
.A Teconnex Advanced 100Ah Midi gives you a 95% usable depth of discharge (DoD) at manufacture. This means a single 11.4 kg Teconnex battery delivers nearly the exact same real-world runtime as a massive, 50 kg lead-acid battery.
Massive Weight Savings for Your Payload
Weight budget is a constant battle in any campervan, motorhome, or overland build. At just 11.4 kg, the Advanced 100 Midi cuts your battery weight by over 50–60% compared to equivalent AGM setups.
Flat Voltage Curve for High-Load Appliances
Teconnex lithium cells maintain a rock-solid, flat 12.8V output through 90% of their discharge cycle. Your high-draw gear runs flawlessly and efficiently right up until the battery is nearly empty.
Ten Times the Lifespan (Ultimate Cost-Per-Cycle Value)
A standard AGM battery typically survives between 300 to 500 charge-discharge cycles before its capacity degrades entirely. Teconnex batteries deliver 3,000 to 4,000+ continuous cycles.
App-Controlled Self-Isolation for Winter Storage
The Teconnex Power Smart App includes a digital on/off isolation toggle. With a simple tap on your phone, you can completely shut down the battery’s terminals for winter storage, eliminating the need to physically disconnect heavy copper cables.
Rapid Off-Grid Replenishment
Teconnex Advanced cells boast exceptional charge acceptance rates. Utilizing a 1C fast-charge profile, you can safely push up to 100A into the battery, taking it from completely dead to 100% full in just 1 hour via a high-output DC-DC charger or heavy solar array.
Recent Reviews
Product Spotlight: The Advanced 100 Midi
The flagship model in the leisure range is meticulously engineered to fit smoothly into standard vehicle battery compartments or under seat-bases, providing maximum power density for compact layouts.
Advanced Safety Protection: The Integrated BMS
Safety is built straight into the core architecture of every Teconnex battery. An industrial-grade Battery Management System (BMS) actively monitors individual cell parameters to safeguard your electrical system against common hazards.
Flexible Charging Speeds (C-Rates Explained)
Charging flexibility is one of the standout features of the Advanced 100 Midi. Depending on your off-grid setup, you can select your ideal charge rate to balance time against absolute battery longevity:
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1C Fast Charge (100A): Fully charges the battery from 0% to 100% in just 1 hour (when using a high-output charger).
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0.5C Recommended Charge (50A): Completes a full recharge cycle in 2 hours.
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0.2C Eco Charge (20A): Takes approximately 5 hours to reach full capacity.
Ready To Talk?
If you’d like to discuss the possibility of fitting a Teconnex Power Advanced LiFePO4 Leisure Batteries please get in touch for a chat.
FAQs:
Can I install a Teconnex lithium battery as a direct replacement for my existing AGM or lead-acid battery?
Yes, but you must check your chargers. Physically, the compact Midi footprint is a direct drop-in replacement that fits standard under-seat bases or battery trays. However, you must ensure that your charging infrastructure—including your 230V mains charger, solar regulator, and vehicle DC-to-DC alternator charger—has a dedicated Lithium ()profile.
Can I charge a Teconnex battery in freezing temperatures?
Charging any lithium battery when cell temperatures drop below can cause permanent “lithium plating,” which ruins the cells. The advanced integrated BMS inside a Teconnex battery actively monitors temperatures and will automatically halt the charging cycle if it drops below freezing to protect your investment. Note that the battery can still safely discharge (provide power to your lights/heaters) down to .
How does the Bluetooth App-Controlled On/Off toggle actually work?
The Teconnex Power Smart App includes a digital isolation switch. When you toggle this button to “Off,” the internal BMS digitally disconnects the external M8 terminals from the internal cell packs. No power can enter or leave the battery. This allows you to securely park your vehicle up for winter storage without having to physically unbolt heavy copper battery cables to prevent parasitic background drain.
Do I need an external battery monitor or shunt with this battery?
No. Traditional batteries require you to wire an external, expensive shunt directly to your negative cable to calculate state of charge. Teconnex batteries feature a highly accurate internal smart shunt integrated directly into the BMS circuitry. It continuously calculates your true remaining percentage and transmits it directly to your phone via Bluetooth.
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