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S155 55W AC G2 Smart Charger

Item No.
Spektrum Accessories - SPMXC2050
$39.99
Reg. Price $59.99. Save $20! Ends 12/8.
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This product may require additional items in order to work out of the box. See below for required items that may be needed to complete.
Charge Adapters

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Adapter: IC3 Battery / JST-PH 2.0 Device
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Adapter: IC3 Battery / JST-PH 2.0 Device
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Adapter: IC3 Battery / JST-RCY Device
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Adapter: IC3 Battery / 4mm Female Bullets
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Adapter: IC3 Battery / 4mm Female Bullets
SPMXCA311
In Stock
$7.99
Adapter: IC3 Battery / JST PH-UMX Device
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Adapter: IC3 Battery / JST PH-UMX Device
SPMXCA312
In Stock
$7.99
Adapter: IC3 Battery / 5mm Bullet with 2' Wires, Smart 2S
SPMXC2050
Adapter: IC3 Battery / 5mm Bullet with 2' Wires, Smart 2S
SPMXCA316
In Stock
$13.99
Adapter: IC3 Battery / EC2 Device
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Adapter: IC3 Battery / EC2 Device
SPMXCA318
In Stock
$8.99
6" Extension: IC3 Battery/IC3 Device
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6" Extension: IC3 Battery/IC3 Device
SPMXCA319
In Stock
$10.99
Adapter: IC3 Battery / IC2 Device
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Adapter: IC3 Battery / IC2 Device
SPMXCA320
In Stock
$7.99
Adapter: IC3 Battery / JST-PH Device, JST-XH Balance
SPMXC2050
Adapter: IC3 Battery / JST-PH Device, JST-XH Balance
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$9.99
Pro Series Race 2s Charge Cable: IC3/5mm
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Pro Series Race 2s Charge Cable: IC3/5mm
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$19.99
6" Extension: IC5 Battery/IC5 Device
SPMXC2050
6" Extension: IC5 Battery/IC5 Device
SPMXCA514
In Stock
$11.99
0 of 1 Selected
Charge Accessories

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Balancing Adapter Board: XH
SPMXC2050
Balancing Adapter Board: XH
DYN5032
In Stock
$8.99
Smart Charger Case
SPMXC2050
Smart Charger Case
SPM6730
In Stock
$35.99
Smart Lipo Bag, 16 x7.5 x 6.5 cm
SPMXC2050
Smart Lipo Bag, 16 x7.5 x 6.5 cm
SPMXCA300
Next Shipment March 2025
$14.99
Smart Lipo Bag, 14 x 6.5 x 8 cm
SPMXC2050
Smart Lipo Bag, 14 x 6.5 x 8 cm
SPMXCA400
In Stock
$12.99
0 of 1 Selected
Charge Adapters

I do not need to purchase this item.

Adapter: IC3 Battery / 4mm Female Bullets
SPMXC2050
Adapter: IC3 Battery / 4mm Female Bullets
SPMXCA311
In Stock
$7.99
Adapter: IC3 Battery / IC2 Device
SPMXC2050
Adapter: IC3 Battery / IC2 Device
SPMXCA320
In Stock
$7.99
0 of 1 Selected
Product $39.99
Add Ons
Estimated Total: $39.99
Estimated Total: $39.99
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Smart Charging Technology Every Modeler Can Afford

The Spektrum S155 charger makes advanced, user-friendly Smart G2 charging technology affordable for any RC hobbyist. It's a particularly fine choice for cost-conscious new drivers and pilots who want the safe and simple operation that only a Smart charger can provide.

Compatible with 4S LiPo, LiFe, Li-Ion, or LiHV batteries as well as 1-12S NiMH and NiCd packs, the 55-watt S155 charger can be used with all popular RC battery types (though only Smart batteries take full advantage of the charger's innovative features). It includes ports for IC3® and IC5® connectors, so no separate adapters are needed to charge most Smart batteries. Generation 2 Smart technology enables the S155 to both charge and balance Smart G2 batteries using one simple connection. No separate balance lead is needed. When connected to a Smart battery, its Auto Charge feature recognizes the correct charging parameters instantly and begins safe, proper charging — automatically.

In order to provide the most hassle-free charging experience, the Spektrum S155 Smart G2 AC Charger includes a color LCD screen with improved menus, icons, and navigation tools. Its intuitive interface allows users to monitor charging progress and make setting changes with ease. An on-screen clock counts down the minutes in real time until your Smart battery is fully charged and ready to use.

When it's time to update the charger firmware, that's easy, too. A USB input port is conveniently located on the front of the case. No special cables are required.

Other handy features of the Spektrum S155 Smart G2 AC Charger include a sleep mode and detachable AC power cord. Enjoy your hobby more with the benefits of advanced, user-friendly Smart G2 charging technology — now available at a price to please any modeler!

  • Advanced, user-friendly Smart G2 charging technology that fits into any hobby budget
  • Delivers 55W of charging power
  • Includes selectable IC3® and IC5® charging ports — no separate adapters required
  • Charges AND balances Smart G2 batteries with one simple IC3® or IC5® connection — no separate balance lead needed
  • Charges up to 4S LiPo/LiFe/Li-Ion/LiHV batteries and 1-12S NiMH/NiCd packs

Features

  • Advanced, user-friendly Smart G2 charging technology that fits into any hobby budget
  • Delivers 55W of charging power
  • Includes selectable IC3® and IC5® charging ports — no separate adapters required
  • Charges AND balances Smart G2 batteries with one simple IC3® or IC5® connection — no separate balance lead needed
  • Charges up to 4S LiPo/LiFe/Li-Ion/LiHV batteries and 1-12S NiMH/NiCd packs
  • Color LCD screen interface features intuitive menus, icons, and navigation tools
  • Clock counts down remaining charge time until your Smart battery is fully charged and ready to use
  • Charges virtually any RC battery (use Smart batteries to benefit from all charger features)
  • Auto Charge recognizes Smart battery charging parameters and starts charging automatically when connected
  • USB input for updating firmware
  • Sleep mode
  • Detachable power cord
  • Sleek, sturdy case fits well on your workbench and in pit/field bags
IC3 or IC5 CHARGING OUTPUT
IC3® or IC5® CHARGING OUTPUT

The S155 Smart G2 AC Charger includes selectable IC3® or IC5® output ports for charging your Smart batteries without needing adapters. You can charge and balance Smart G2 batteries with one simple connection — no separate balance lead is required. A USB input port is also provided for easily keeping the charger's firmware up to date.

 

IMPROVED USER INTERFACE
IMPROVED USER INTERFACE

To deliver the most hassle-free charging experience, the S155 Smart G2 AC charger includes a color LCD screen with improved menus, icons, and navigation tools. Its Auto Charge feature recognizes Smart battery charging parameters as soon as you connect your pack and begins proper charging automatically for maximum safety and ease.

 

CHARGE TIME REMAINING CLOCK
CHARGE TIME REMAINING CLOCK

A clock on the S155 Smart G2 AC charger's screen counts down the minutes in real time until your Smart battery is fully charged and ready to be used.

 

CHARGING CONVENIENCE
CHARGING CONVENIENCE

The S155 Smart G2 AC charger handles up to 4S LiPo, LiFe, Li-Ion, or LiHV batteries, as well as 1-12S NiMH and NiCd packs (use Smart batteries to benefit from all charger features). Its sleek, sturdy case fits well on your workbench, and the power cord is detachable for easy storage and transport in pit and field bags.

 

Product Specs

Amp Meter
Yes
Battery Balance Connector
JST_XH
Battery Type
Smart, Non Smart, LiFe (3.3V per cell), LiHV (3.8V per cell), LiIon (3.3V per cell), LiPo (3.7V per cell), NiCd (1.2V per cell), Smart NiMH (1.2V per cell)
Discharge
No
Display
LCD
Input Voltage
100-240V, 50-60Hz
Integrated Balancing
Yes - Internal Balancer & Internal Adapter
LiPo Compatibility
4S, 1S, 2S, 3S
Low Input Voltage Protection
Yes
Maximum Charge Rate
3 to 5 Amps
Number of Output Ports
1
Output Connector
IC3, IC5
Over Current Protection
Yes
Part Type
Electronics
PC Connectivity
Yes
Peak Detection
Yes
Power (watts)
50-99W
Power Source
AC
Product Height
2.4" (61 mm)
Product Length
4.4" (112 mm)
Product Weight
12.2 oz (345 g)
Product Width
2.4" (61 mm)
Programmable
Yes
Reverse Polarity Protection
Yes
Selectable Charge Rate
Yes
Short Circuit Protection
Yes
Software Updates
Yes
Technology
Smart
Thermal Protection
Yes
USB Power out
No
Voltage Meter
Yes

Compatibility

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Video Overview

FAQ

The S155 does not have a Storage or Discharge option. The S1100 or larger charger would be needed.

Yes absolutely, with the correct adapter such as SPMXCA309.

Yes, this charger can charge a battery with a balance connection. It can charge up to a 4S LiPo.

Yes, this is the adapter SPMXCA320.

This adapter would be needed. SPMXCA320
Enjoy Smart G2 advantages for less with the Spektrum™ S155 Smart G2 AC Charger. It ensures easy and accurate charging, especially with Smart batteries — providing Auto Charge simplicity, one-connection balancing, IC3® and IC5® output ports, and more.

Product Details

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In The Box
  • (1) S155 AC Smart Charger
  • (1) Power Cord
  • (1) Manual
S155 55W AC G2 Smart Charger