Varta
Varta YTX4L-4 (FA) · Motorcycle battery 12V 3Ah 50A
Reference: BOL-VARTA-503909005 · EAN 4016987168899
The Varta YTX4L-4 (FA) (ETN 503 909 005, also written 503909005) is a motorcycle battery (AGM) with 12 V, 3 Ah and 50 A cold cranking current, measuring 113 × 70 × 87 mm, with the positive terminal on the right.
Varta YTX4L-4 (FA) · Motorcycle battery 12V 3Ah 50A images
- Voltage
- 12V
- Capacity
- 3Ah
- Cold cranking amps (EN)
- 50A
- Technology
- AGM
- Dimensions (L × W × H)
- 113 × 70 × 87 mm
- Polarity
- Positive terminal on the right
Price:
€32.93
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14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.
Does it fit your vehicle? Check by number plate or VIN
Enter your number plate or chassis number (VIN): we check whether this battery is compatible with your vehicle.
Where the Varta YTX4L-4 (FA) fits
The Varta YTX4L-4 (FA) is a motorcycle starter battery: compact, vibration-resistant and with just the right power to turn the starter motor and feed the electronics. It is worth keeping the YTX4L-4 (FA) on a maintenance charger if the bike is laid up over winter.
At 3 Ah it is a small battery, typical of 50 to 125 cc scooters and light motorcycles. Varta lists the YTX4L-4 (FA) in its Powersports AGM Active line. See all Varta batteries
Part numbers and codes for the Varta YTX4L-4 (FA)
Look for any of these YTX4L-4 (FA) codes on your current battery or in the manufacturer's catalogue:
| Commercial reference | YTX4L-4 (FA) |
|---|---|
| ETN code | 503909005 (also 503 909 005) |
| Manufacturer short code | TX4L (FA) |
| EAN | 4016987168899 |
| Base hold-down | B00 |
| Terminal type | Y4 |
| Also known as | Varta 503909005 · Varta 503 909 005 · Varta TX4L (FA) |
| Not to be confused with | Varta YTX5L-4 (FA) (4 Ah, 75 A) |
Equivalents and alternatives to the Varta YTX4L-4 (FA)
Other AGM batteries that fit the YTX4L-4 (FA)'s tray with the same polarity: an AGM can only be replaced by another AGM.
| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide AGM12-4 | AGM | 3 Ah | 50 A | 115 × 70 × 85 |
| Exide ETX4L-BS | AGM | 3 Ah | 50 A | 115 × 70 × 85 |
| Fulbat FTX4L-BS / FTZ5S-BS | AGM | 4.2 Ah | 50 A | 113 × 70 × 85 |
Varta YTX4L-4 (FA) vs YT4L-BS and YTX5L-4 (FA): which one to choose?
How the YTX4L-4 (FA) compares with Varta batteries of similar size and capacity:
| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta YTX4L-4 (FA) (this one) | 3 Ah | 50 A | 113 × 70 × 87 | right | 1.4 kg |
| Varta YT4L-BS | 3 Ah | 40 A | 114 × 71 × 86 | right | 1.39 kg |
| Varta YTX5L-4 (FA) | 4 Ah | 75 A | 113 × 70 × 105 | right | 1.8 kg |
- Varta YT4L-BS: the same capacity, 10 A less cranking power, the same dimensions.
- Varta YTX5L-4 (FA): 1 Ah more, 25 A more cranking power, a different case (113 × 70 × 105 mm).
Check this before ordering the Varta YTX4L-4 (FA)
- The YTX4L-4 (FA) needs 113 × 70 × 87 mm of space: measure it with the hold-down clamp in place.
- The YTX4L-4 (FA) has the positive terminal on the right: compare it with your current battery.
- With 3 Ah, the YTX4L-4 (FA) replaces an original battery of that capacity or slightly less.
- Cold cranking: 50 A (EN), equal to or higher than the original.
Frequently asked questions about the Varta YTX4L-4 (FA)
YTX4L-4 (FA) or YT4L-BS: which one suits me?
Compared with the YTX4L-4 (FA), the Varta YT4L-BS has 10 A less cranking power. The YTX4L-4 (FA) cranks harder; the YT4L-BS is only a good option if your original battery says 40 A or less. Both measure 113 × 70 × 87 mm, so they fit the same tray.
Is the Varta 503909005 the same battery as the Varta YTX4L-4 (FA)?
Yes. 503909005 is the ETN code Varta uses for its YTX4L-4 (FA) battery, so you can search for it by either code.
How much does the Varta YTX4L-4 (FA) weigh?
1.4 kg, with 3 Ah of capacity. For reference, the Varta YT4L-BS (3 Ah) weighs 1.39 kg.
Which battery is equivalent to the Varta YTX4L-4 (FA)?
Only other AGM batteries with its dimensions and polarity: Exide AGM12-4, Exide ETX4L-BS and Fulbat FTX4L-BS / FTZ5S-BS. Neither an EFB nor a conventional battery replaces the YTX4L-4 (FA).
Which side is the positive terminal on the Varta YTX4L-4 (FA)?
On the YTX4L-4 (FA), the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.
Which charger does the Varta YTX4L-4 (FA) need?
A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.
What it means that the YTX4L-4 (FA) is AGM
The YTX4L-4 (FA) is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the YTX4L-4 (FA) can be fitted in the boot or under a seat with no risk of spills.
Keep comparing: alternatives to the YTX4L-4 (FA)
- All motorcycle batteries
- More Varta models
- Exide AGM12-4 · 3 Ah, 50 A, 115×70×85 mm
- Exide ETX4L-BS · 3 Ah, 50 A, 115×70×85 mm
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