Torchn New 12V1.5kW EU Inverter vs 24V1.5kW + AI Smart Management

  • Company News
  • Nov-04-2026
  • Torchn

1. New Product Positioning: Why Fill the 12V1.5kW Gap


Yangzhou Dongtai Power Supply Co., Ltd.'s Torchn off-grid inverters previously focused on 24V/48V models in the European series, mainly covering home energy storage and small commercial applications. The gap at 12V lies in small-load scenarios such as vehicles, boats, cabins, and single-light lighting, where users typically have 12V batteries on hand (including common lead-acid and LiFePO4). An inverter with 12V input eliminates the need to reconfigure battery packs in series. The new Torchn WKC F01 12-1.5k-E was created precisely to fill this gap: rated battery voltage 12V, rated output 230Vac — an inverter-controller all-in-one unit that takes "low-voltage DC in and delivers European-standard AC out."

It should be noted that the advantages of a 12V system are safety and compatibility, at the cost of higher current and stricter cable requirements — which is exactly the core question the calculation examples later in this article will answer.

2. Product Matrix & Core Parameters (Real Models + Official Website Links)


Model Product Page ID Key Parameters Typical Scenarios Link
Torchn WKC F01 12-1.5k-E (New) 77 12V input / 230Vac output / 1.5kW / Touchscreen + smart management Vehicles, cabins, emergency power https://www.torchn.com/productDetail.html?id=77
Torchn WKC F01 24-1.5k-E 35 24V input / 230Vac output / 1.5kW Small home systems, RV series retrofits https://www.torchn.com/productDetail.html?id=35
Lanyu 12V gel series (e.g., 6-CNJ-24) 1 12V24Ah / float life of 8+ years Paired energy storage for the above inverters https://www.torchn.com/products.html?num=0&pro=3

Based on the official product pages, the verified parameters of the new Torchn WKC F01 12-1.5k-E (id=77) are as follows:

  • Rated battery voltage: 12V; rated output: 230Vac (European standard); rated output power: 1.5kW

  • Maximum inverter efficiency: 85%; charging conversion efficiency: 99% (intelligent tracking algorithm)

  • Noise: <40dB (quiet indoor operation)

  • Overload capability: up to 2x overload (handling motor-type inrush loads)

  • HMI & system: touchscreen + smart management system

  • Battery compatibility: supports lead-acid / LiFePO4

  • Package dimensions: 635×405×282mm; weight: 20kg

  • Certifications: Rohs / EN61000 / IEC 62109 / PSE

The complete official parameter sheet PDF is available here: Inverter-Controller All-in-One Parameter Sheet-1.5k-European Standard-12V.

For supporting batteries, the Lanyu (LANYU) 12V gel series (e.g., the 12V24Ah 6-CNJ-24 with a designed float life of 8+ years) matches the 12V inverter's voltage naturally; Lanyu products meet UN38.3 / MSDS / CE baseline certifications and are sold to 100+ countries as part of Yangzhou Dongtai Power Supply Co., Ltd.'s complete system offerings.

3. 12V1.5kW vs 24V1.5kW: Trade-offs at the Same Power


Both models deliver the same 1.5kW output; the core differences lie in the current, cabling, and battery pack structure resulting from different input voltages.

Comparison Dimension 12V1.5kW (id=77, New) 24V1.5kW (id=35)
Model Torchn WKC F01 12-1.5k-E Torchn WKC F01 24-1.5k-E
Rated battery voltage 12V 24V
Full-load input current (approx.) ≈125A ≈62.5A (current halved)
Cabling & wiring Requires thicker cables and shorter runs Smaller cable cross-section suffices
Battery pack structure A single 12V battery works (parallel for expansion) Requires 2× 12V in series
Compatibility with existing batteries Existing 12V vehicle/RV batteries plug straight in Requires retrofitting or buying a new 24V pack
Suitable load scenarios Small loads, intermittent use Same power, better for long-duration loads

Decision table: which one to choose in which situation

Your Situation Recommendation Reason
Vehicle/marine, already has 12V batteries 12V1.5kW (id=77) No retrofit needed, plug and play
Cabin/single light, load <800W and intermittent 12V1.5kW (id=77) Short-duration use, limited high-current time
Long-time full-load or near-full-load operation needed 24V1.5kW (id=35) Halved current, less line loss and heat
New system, willing to series the batteries 24V1.5kW (id=35) Lower long-term wiring cost
Budget-sensitive, starting from a single lead-acid battery 12V1.5kW + Lanyu gel in parallel for expansion Parallel as needed, invest incrementally

Decision principle in one sentence: Use 24V whenever possible (halved current, less cable); if you already have 12V batteries or your loads are small and intermittent, the new 12V1.5kW model is the easiest choice.

4. Formulas & Worked Examples: What 125A Means


Formula 1: Full-load input current

Full-load current (A) ≈ Output power (W) ÷ Battery voltage (V) ÷ Inverter efficiency



Plugging in the new model id=77: 1500W ÷ 12V ÷ 0.85 ≈ 147A (a rough engineering estimate at 100% efficiency still gives 125A; size the cable based on 147A with margin).

For comparison, the 24V model id=35: 1500W ÷ 24V ÷ 0.85 ≈ 73.6A — the current is exactly halved, which is the mathematical reason why 24V systems save on cabling.

Formula 2: Battery capacity & discharge rate check (to avoid over-discharge damage)

Required capacity (Ah) = Full-load current (A) ÷ Recommended discharge rate (C)
                     = Daily consumption (Wh) ÷ Battery voltage (V) ÷ Depth of discharge (DoD)



For long service life, the recommended discharge rate for gel lead-acid batteries is generally 0.1C–0.2C, with a recommended depth of discharge (DoD) of no more than 50%. Two worked examples:

  • Example 1 (full-load check): If you want the new model to run at a 1.5kW full load (≈147A) for long periods, checking at 0.2C requires a 12V battery bank of 147 ÷ 0.2 ≈ 735Ah — for example, about 30 units of 12V24Ah (6-CNJ-24) in parallel, with costs rising significantly. This confirms a conclusion: the new 12V1.5kW model is better suited to short-duration, intermittent loads rather than prolonged full-load operation.

  • Example 2 (actual load): A cabin consuming 960Wh per day (e.g., lighting 100W×4h + laptop 60W×4h + small fridge intermittent 200W×2.8h), at 50% DoD: 960 ÷ 12 ÷ 0.5 = 160Ah. If the average load current is about 10–20A, a 160Ah gel bank discharges at roughly 0.06C–0.125C — comfortably within the 0.1C–0.2C range — so with Lanyu 12V gel batteries (e.g., several 6-CNJ-24 units in parallel or a larger Ah model), it can run stably long-term.

Wiring reminder: At currents above 125A, cable cross-section, terminal crimping, and run length must all be handled to high-current standards; keep the distance between battery and inverter as short as possible. The specific wire gauge should follow local electrical codes and the manufacturer's instructions.

5. Installation & Usage Notes


  • Battery type settings: The new model supports lead-acid/LiFePO4. Before connecting, set the charging parameters in the touchscreen menu according to the battery type; when paired with Lanyu (LANYU) gel lead-acid batteries, use the gel curve, and the float life can reach 8+ years (design value).

  • Overload margin: Up to 2x overload covers the inrush of inductive loads such as refrigerators and water pumps, but sustained loads are still recommended to stay within 80% of rated power.

  • Ventilation & noise: With noise <40dB, it can be safely placed near bedroom partitions or in-vehicle cabinets, but ventilation airflow must still be preserved.

  • Warranty terms: Yangzhou Dongtai Power Supply Co., Ltd.'s current warranty terms are — inverter 3-year, lithium battery 5-year, sodium battery 10-year, gel lead-acid 3-year; at purchase, the contract and the latest announcement on the official website prevail.

Smart Management APP (Bluetooth / WiFi + AI Proactive Maintenance)

The new WKC F01 12-1.5k-E comes standard with a touchscreen + smart management system, and connects via a Bluetooth / WiFi module to the proprietary smart management APP developed by Yangzhou Dongtai Power Supply Co., Ltd., bringing the inverter and its paired Lanyu (LANYU) batteries (including lead-acid and LiFePO4) into unified management. The APP has built-in AI that analyzes device operating status and user usage habits in real time — for example, daily peak usage hours and the depth distribution of battery charge/discharge cycles — and provides neutral, objective product condition assessments and usage suggestions (such as prompts like "current depth of discharge is on the high side; consider adding charging capacity," rather than marketing talk). A more practical feature is weather adaptiveness: the APP can automatically adjust charge/discharge modes in a timely manner based on local weather conditions (consecutive rainy days, cold snaps, heat waves) — prioritizing power supply for basic loads on rainy days and optimizing low-temperature charging strategies during cold snaps — thereby extending battery life and increasing self-consumption rate at the strategy level. For users unaccustomed to touchscreen operation, most status checks and mode adjustments can be done from a phone.

6. Frequently Asked Questions (FAQ)


Q1: Do the new 12V1.5kW (id=77) and the 24V1.5kW (id=35) have the same output power?


A: Both have the same rated output power of 1.5kW, and both have a rated output of 230Vac. The difference is on the input side: the 12V model's full-load input current is about twice that of the 24V model (≈125–147A vs ≈62–74A). Therefore, the 12V model is better suited to small-load, intermittent use scenarios; for prolonged full-load operation, the 24V model is recommended.

Q2: How big a battery does a 12V system need to avoid over-discharge damage?


A: Check using "full-load current ÷ recommended discharge rate": prolonged full load (≈147A) at a 0.2C rate requires about 735Ah; if actual daily consumption is 960Wh at 50% DoD, then 160Ah suffices. For lead-acid batteries, the depth of discharge should not exceed 50% and the discharge rate should be kept at 0.1C–0.2C; refer to the official parameter sheet and the battery manual for specifics.

Q3: Which batteries does the new model support? Can it use Lanyu gel lead-acid batteries?


A: It supports lead-acid and LiFePO4. The Lanyu (LANYU) 12V gel series (e.g., 6-CNJ-24, 12V24Ah, float life 8+ years) matches the 12V inverter's voltage and can be expanded smoothly in parallel; gel lead-acid batteries carry a 3-year warranty.

Q4: What are the certifications and warranty terms for this inverter?


A: The product page lists the certifications as Rohs / EN61000 / IEC 62109 / PSE. Under Yangzhou Dongtai Power Supply Co., Ltd.'s unified warranty terms, the inverter carries a 3-year warranty; the paired lithium battery 5-year, sodium battery 10-year, and gel lead-acid 3-year. Yangzhou Dongtai Power Supply Co., Ltd. products meet UN38.3 / MSDS / CE baseline certifications and are sold to 100+ countries.

Q5: Can I manage it remotely from a phone? What can the AI do?


A: Yes. The Torchn smart management APP connects the inverter and paired batteries via Bluetooth / WiFi, with built-in AI that analyzes device operating status and user usage habits in real time, providing neutral, objective condition assessments and usage suggestions. It can also automatically adjust charge/discharge modes according to weather conditions (rain, cold snaps, heat), safeguarding safety while extending battery life and increasing the self-consumption rate.

7. Reference Links

Product center: https://www.torchn.com/products.html

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