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🔌 Charge smarter, drive confident—never miss a beat with CTEK Comfort Indicator!
The CTEK (56-870) Comfort Indicator Cig Plug is a durable, easy-to-install 12V socket connector with a built-in battery charge indicator. Compatible with all 12V CTEK chargers up to 7A and fitting both 12 mm and 21 mm sockets, it offers real-time battery status visibility and comes with a 2-year replacement warranty, ensuring reliable performance and peace of mind for vehicle owners.






















| ASIN | B009K2QX0U |
| Best Sellers Rank | #137,650 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #671 in Battery Tools |
| Brand | CTEK |
| Brand Name | CTEK |
| Colour | Multi Color |
| Compatible Devices | CTEK chargers |
| Country of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 1,267 Reviews |
| EU Spare Part Availability Duration | 2 Years |
| Global Trade Identification Number | 00782645375834, 00859926005213 |
| Item Dimensions | 23 x 2 x 2 Centimeters |
| Item Weight | 0.06 Kilograms |
| Item dimensions L x W x H | 23 x 2 x 2 Centimeters |
| Manufacturer | Ctek |
| Min. Operating Voltage | 12 Volts |
| Minimum Operating Voltage | 12 Volts |
| Model Number | 56-870 |
| Part Number | 56-870 |
| Power Source | Battery Powered |
| Power Source Type | Battery Powered |
| Specification Met | CE |
| UPC | 782645375834 859926005213 642008170622 |
| Unit Count | 1 Count |
B**E
Great product
Works well with my charger. Easy to connect to the battery compared with a direct connection.
M**D
Great product
My broken Porsche branded smart charger came with an attached cig plug, but this plug is better as it comes with indicator lights.
H**R
Brilliant Little Device - Just Not Cheap
This product provides an extremely simple but accurate way to monitor charge status of a car battery on a rarely used vehicle without even having to "pop the bonnet" to connect a multi meter. If the battery does need charging, it so very simple to use the "comfort connect" connection from a C Tek charger to connect directly to the device leaving the C Tek charge status lights visible through a window on a seat inside a locked vehicle - genius! There have, sadly, been some negative and ignorant reviews of this product which may needlessly discourage purchase of an otherwise excellent product. Firstly, the need to connect to a permanently live cigarette lighter socket should be obvious - it's not a surprise! Fortunately, the 2 x Skodas within my extended family both have such permanently live sockets and find that this device is so simple to use. Check before buying.! But - even if your car does not have a permanently live socket on dash or centre console - don't give up - check to see if there is a permanently live socket in the boot. Secondly, there are some negative reviews criticizing the voltage value of the Amber/Green threshold. Without wanting to start an online spat, I regard the 12.65V threshold as wholly appropriate for a "fully charged" vs "charge soon" boundary. If your car battery is not above 12.65V it is at least 20-30% discharged and some electric wizardry from a C Tek charger would be beneficial to extend battery life even if not immediately essential to starting the engine. Only downside, £15 is not cheap for what it is, but it could save you hundreds of pounds. Quality has a price.
E**L
works perfectly!
works perfectly. Love the way it attaches to the CTEK charger
T**I
Perfetto per la connessione tramite accendisigari o presa interna.
Perfetto per la connessione tramite accendisigari o presa interna. Attenzione perché alcune auto (per esempio BMW) disattivano la presa accendisigari dopo alcuni minuti rendendo impossibile la carica.
Trustpilot
2 weeks ago
1 month ago