Overview
The Spektrum S2100 G2 2x100W AC Smart Charger represents the cutting edge of RC battery charging technology, bringing professional-grade charging capabilities to RC enthusiasts across the UK and beyond. Whether you're a dedicated RC car competitor, a weekend basher, or an RC helicopter pilot, this dual-channel smart charger delivers the speed, intelligence and convenience that modern RC hobbyists demand. The S2100 G2 is specifically designed for users who operate Smart batteries and want to eliminate the complexity and confusion that often surrounds battery charging and balancing.
This charger stands out in the crowded marketplace of RC charging solutions because it combines raw power with intelligent automation. With up to 100W per channel or an impressive 200W on a single channel, the S2100 G2 can charge your batteries in a fraction of the time required by older chargers. But speed is just the beginning — the real innovation lies in the Auto Charge feature, which automatically recognises your Smart battery's parameters and begins safe, accurate charging without any manual input from you. No more confusion about charge rates, battery chemistry or cell counts when you're using Smart batteries.
The charger is built for the modern RC enthusiast who values both performance and convenience. Its sleek, compact design fits perfectly on your workbench at home, and the detachable power cord and rubber grips make it equally at home in your pit bag at the track or field. With features like an integrated 2.4-inch display screen, countdown charging timer, dual IC3® and IC5® output ports, and comprehensive battery monitoring, the S2100 G2 transforms battery charging from a chore into a seamless part of your RC experience.
Key Features
- Dual 100W Channels with 200W Single Channel Power — The S2100 G2 delivers up to 100W of charging power per channel, or you can concentrate all 200W on a single channel for ultra-fast charging when you need to get back to the track or field quickly. This flexibility means you can charge two batteries simultaneously for everyday sessions, or dedicate maximum power to a single pack when time is critical.
- Smart Battery Auto Charge Technology — When you connect a Smart battery, the charger automatically recognises the battery's chemistry type, cell count, and optimal charge rate, then begins safe charging without any input from you. This eliminates the most common cause of charging errors and makes the S2100 G2 ideal for beginners and busy enthusiasts who want plug-and-play simplicity.
- Integrated One-Connection Balancing — Balancing your Smart LiPo packs has never been simpler. Unlike traditional chargers that require a separate balance lead, the S2100 G2 balances your Smart G2 batteries through the same single IC connection used for charging. This means fewer cables, less confusion, and perfect cell balance every time.
- Built-in IC3® and IC5® Output Ports — The charger includes both IC3® and IC5® charging ports integrated directly into the unit, eliminating the need to purchase separate adapters for different battery types. A convenient slider lets you select between IC3® and IC5® charging, and both connectors are backwards compatible with older EC3™ and EC5™ connectors for maximum flexibility with your existing battery collection.
- Large 2.4-Inch IPS Display with Countdown Timer — The crisp 2.4-inch IPS LCD screen provides a clear, detailed view of your charging session with real-time information. An on-screen clock counts down the minutes remaining until your battery is fully charged and ready to use, so you always know exactly when you can get back to flying or driving.
- Advanced Smart Battery Monitoring — The S2100 G2's intelligent software tracks and stores numerous data points about your Smart batteries, including charge history, battery health indicators, and performance metrics. This information helps you make better decisions about battery management and can alert you to batteries that might need attention.
- Comprehensive Safety Protection — Multiple layers of protection keep your batteries and charger safe, including reverse polarity protection, short circuit protection, over-current protection, thermal protection and a safety timer that prevents overcharging. These features work automatically without requiring any configuration, making the charger safe for users of all experience levels.
- Intuitive Updated User Interface — The redesigned menu system, fresh icons and easy-to-use non-slip buttons make the S2100 G2 simple to navigate. The interface is far more user-friendly than previous generations, with clear, logical menus that don't require constant reference to the manual.
- Universal Battery Chemistry Support — Whilst Smart batteries unlock all the charger's advanced features, the S2100 G2 also charges virtually any RC battery chemistry you might own, including LiPo, LiFe, LiHV, LiIon, NiMH, NiCd and Lead-Acid batteries. The charger supports 1-6S LiPo/LiFe/LiIon packs, 1-16S NiCd/NiMH packs, and 1-12S Lead-Acid packs.
- Premium Build Quality with Practical Design — The sturdy case is constructed to withstand the rigours of regular use in pit bags and on workbenches. Rubber grips on the sides make it easier to hold the charger securely when plugging in or removing batteries, and the detachable power cord makes transport significantly more convenient than fixed-cord chargers.
- USB Connectivity for Firmware Updates and Device Charging — USB input and output ports allow you to keep the charger's firmware current with the latest software updates and features. The USB output port also lets you charge secondary devices like mobile phones or RC transmitters when you're at the field or track.
- Efficient Low-Noise Cooling Fan — An internal cooling fan keeps the charger running at optimal temperatures during extended use, but the fan design is quiet and unobtrusive, so you won't be disturbed by excessive noise on your workbench or at the field.
- Convenient ON/OFF Power Switch — An integrated ON/OFF switch eliminates the need to constantly plug and unplug the power cord from the wall outlet. This is a small feature that makes a big difference in daily convenience and also reduces wear on the power connector.
Technical Performance
The S2100 G2 is engineered to deliver professional-quality charging performance with the convenience that modern RC enthusiasts expect. The dual-channel architecture with flexible power distribution (100W per channel or 200W on single channel) provides genuinely useful versatility — on a busy day at the track, you can charge two 3S batteries simultaneously, but when you need raw speed, you can dedicate all 200W to a single pack. The charger supports normal charge rates from 0.1A to 12.0A (adjustable in 0.1A increments, up to 200W maximum) and discharge rates from 0.1A to 1.5A (up to 15W maximum). This precision control means you can charge everything from small 1S micro batteries to large 6S LiPo packs with complete confidence. The built-in battery balance connector uses the JST-XH standard, and internal balancing circuitry ensures perfect cell balance without requiring a separate balance lead when using Smart G2 batteries. The 2.4-inch 320x240 IPS LCD display provides excellent visibility from virtually any angle, and the dedicated amp meter and voltage meter display real-time charging information. With peak detection for NiMH and NiCd batteries, the charger automatically detects when conventional battery types are fully charged and switches to a trickle charge. The comprehensive battery temperature monitoring system watches battery temperature throughout the charge cycle, with thermal protection automatically halting charging if temperatures become excessive. The safety timer prevents accidental overcharging by limiting total charge time. The charger operates from standard UK mains electricity (100-240V AC, 50-60Hz), making it suitable for use anywhere in the world. The compact design measures just 145mm long by 145mm wide by 104mm tall, and the entire unit weighs only 1070 grams, making it genuinely portable despite its powerful capabilities. The detachable power cord and sleek case design allow the charger to fit comfortably in pit bags alongside other essential equipment.
What's in the Box
- S2100 G2 2x100W AC Smart Charger
- AC Power Cord with international voltage compatibility
- Comprehensive Instruction Manual (English version included)
Frequently Asked Questions
- Is the Spektrum S2100 G2 suitable for RC car and RC helicopter beginners? — Absolutely. The Auto Charge feature is specifically designed for beginners, recognising Smart battery parameters and beginning safe charging automatically when the battery is connected. You don't need to understand charge rates, cell counts or chemistry types — the charger handles all of that for you. The intuitive interface with its fresh menus and easy-to-use buttons makes the charger simple to navigate even if you've never used a programmable charger before. For maximum safety and simplicity, use Smart batteries with your S2100 G2, and the charger becomes nearly foolproof.
- What batteries can the S2100 G2 charge? — The charger is compatible with Smart G2 batteries (which unlock all advanced features), and also charges virtually any RC battery chemistry including LiPo, LiFe, LiHV, LiIon, NiMH, NiCd and Lead-Acid batteries. For lithium-based batteries (LiPo, LiFe, LiHV, LiIon), the charger supports 1-6S packs. For NiMH and NiCd batteries, it supports 1-16S packs. For Lead-Acid batteries, it supports 1-12S packs. When using non-Smart batteries, you'll need to manually select the battery chemistry and charge rate, but the charger will still provide safe, accurate charging with full protection circuitry.
- How fast will the S2100 G2 charge my batteries? — With up to 100W per channel or 200W on a single channel, the S2100 G2 is significantly faster than older single-channel chargers. Actual charge time depends on battery capacity and charge rate, but the on-screen countdown timer shows you exactly how many minutes remain until your battery is fully charged. For reference, the charger supports normal charge rates up to 12.0A at the 200W setting, which is genuinely fast for most RC applications. The faster the charge rate you select, the quicker your battery will be ready.
- What's the difference between the S2100 G2 and earlier Spektrum charger models? — The S2100 G2 represents the latest generation of Spektrum Smart charging technology. Key improvements include the updated, more intuitive user interface with fresh menus and icons; the integrated IC3® and IC5® output ports (eliminating the need for separate adapters); the ability to charge and balance Smart G2 batteries through a single connection without a separate balance lead; the large 2.4-inch display with countdown timer; USB ports for firmware updates; and overall improvements to user-friendliness. If you're upgrading from an older charger, you'll immediately notice how much simpler and faster the charging experience has become.
- Does the S2100 G2 work with older EC3® and EC5™ batteries? — Yes, the IC3® and IC5® connectors are fully backwards compatible with older EC3™ and EC5™ connectors, so you can charge batteries with the older connector styles without purchasing adapters. This is a significant practical advantage if you have a mixed collection of older and newer batteries.
- What safety features does the S2100 G2 include? — The charger includes comprehensive protection: reverse polarity protection (prevents damage if you accidentally connect a battery backwards), short circuit protection (protects against accidental short circuits), over-current protection (prevents excessive current draw), thermal protection (monitors battery and charger temperature, halting charging if temperatures become excessive), battery temperature monitoring throughout the charge cycle, and a safety timer that prevents overcharging. These features work automatically without requiring any input from you, making the charger safe for all users.
- Can I charge two batteries at the same time with the S2100 G2? — Yes, the charger has two independent channels, each capable of delivering up to 100W of charging power. You can charge two batteries simultaneously on separate channels, or concentrate all 200W of power on a single battery for maximum charging speed. The dual-channel architecture gives you genuine flexibility to match your charging needs.
- What display information does the S2100 G2 show? — The 2.4-inch IPS LCD display shows an impressive amount of useful information: real-time charging voltage and current (displayed on the amp meter and voltage meter), battery cell count, battery chemistry type, remaining charge time (displayed as a countdown clock), battery temperature, and comprehensive Smart battery history and performance data when using Smart batteries. All of this information helps you understand exactly what's happening during the charge cycle.
- Can I update the charger's firmware? — Yes, the S2100 G2 includes a USB input port that allows you to update the charger's firmware with the latest software updates from Spektrum. These updates may include new features, improved compatibility or enhanced functionality. The charger stores software updates on its internal memory, ensuring you always have the latest capabilities.
- Does the S2100 G2 come with a carrying case or bag? — The charger comes housed in a sleek, sturdy case designed to fit on your workbench or in your pit bag. The case features rubber grips on the sides for easier handling when plugging in or removing batteries. However, no separate carrying bag is included — the case itself serves as the protective housing for transport and storage.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the SPM S2100 G2 2x100W AC Smart Charger O-SPMXC2000I today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
