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Century EverRide YTX4L-BS 50CCA 3Ah 12V AGM motorcycle battery, dry-charged with sealed acid pack, polypropylene case with Type A terminalsThree-view line drawing of a battery terminal, front, side and top, showing a round post in a square body, labelled Terminal Type – Century batteryPlan outline of a six-cell battery case with the negative marked at the left end and the positive at the right – Century battery

Century

YTX4L-BS EverRide Motorcycle Battery — 50CCA 3Ah AGM Dry Charged

151129

Century EverRide AGM motorcycle battery. 50CCA 3Ah 12V, dry-charged with acid pack supplied. Fits 50cc-125cc scooters, mopeds, pit bikes and small-engine machines.

$70.00

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50cc to 125cc scooters, mopeds and pit bikes

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A compact AGM battery for small-displacement scooters, mopeds and dirt bikes that need a reliable cold start without maintenance. Delivers 50 cold cranking amps and 3 amp-hours in a tray-friendly case that fits most 50cc to 125cc scooters, pit bikes and lawnmower-style small-engine machines.

Built with lead-calcium cast grid plates and specialist AGM separators that resist vibration and extend cycle life. The VRLA spill-proof design holds the acid in a glass-mat matrix so the battery mounts up to 30° off vertical without leaking. Case is polypropylene; terminals are brass with silver plating.

Ships dry-charged with a sealed acid pack. Pour the acid in, seal the cell cover with the supplied strip, then charge at 0.3A for 4-6 hours before fitting. Once activated it stays sealed for life.

  • 50CCA cold start — turns over 50cc to 125cc engines in cold weather
  • AGM separators — holds acid in a glass mat, resists vibration damage
  • Lead-calcium plates — low self-discharge, longer shelf life between rides
  • VRLA spill-proof — mounts up to 30° off vertical without leaking
  • Silver-plated brass terminals — low resistance for stronger cranking under load
  • 400+ deep cycles — tested beyond JIS D5302 at 30% DOD and 45°C

Electrical

Voltage: 12V

CCA: 50A

Capacity: 3Ah (20hr)

Chemistry

Type: Dry Charged AGM

Technology: Lead Calcium VRLA

Physical

Dimensions: 114 × 71 × 86 mm (L×W×H)

Weight: 1.4kg

Terminal: Type A, round post

Length114mm
Width71mm
Height86mm
Weight1.4kg

Ships dry-charged with sealed acid pack. Activate before first fit:

1. Peel the sealed strip off the battery top to expose the six cells.

2. Place the acid pack upside down over the cells and press firmly; acid flows into each cell until the pack empties.

3. Let it stand 30 minutes for the plates to absorb the acid.

4. Press the supplied sealing strip firmly along the full length of the cell cover.

5. Charge at 0.3A for 4-6 hours (10% of the Ah rating) on a smart charger before fitting to the bike.

Confirm polarity before connecting: positive terminal on the right when viewed from the terminal face. Battery mounts up to 30° off vertical in any orientation.

50cc to 125cc scooters, mopeds and pit bikes
Small-engine machines taking a YTX4L-BS size battery
Terminal Type A with positive on the right (polarity view: terminal face)
24V systems — this is a 12V battery
Deep-cycle house applications — this is a starting battery

Q: What does AGM actually mean?
A: Absorbent Glass Mat. A fibreglass mat between the lead plates holds the acid like a sponge, so no free liquid can leak if the case is tipped or shaken. Lets the battery mount at steep angles and survive vibration that kills flooded batteries.

Q: What does CCA actually mean?
A: Cold Cranking Amps. The current the battery delivers for 30 seconds at -18°C while holding above 7.2V. 50CCA suits engines up to roughly 125cc with normal compression.

Q: What does Ah actually mean?
A: Amp-hours. How much energy the battery stores. 3Ah means it could theoretically deliver 1A for 3 hours or 3A for 1 hour. In practice it's the reserve for running small loads with the engine off.

Q: What's the difference between dry-charged and factory-activated?
A: Dry-charged (this battery) ships without acid and needs activation on arrival — pour in the supplied acid, seal, then charge. Factory-activated ships ready to install. Dry-charged batteries have a longer shelf life because they don't start self-discharging until acid is added.

Q: Does the acid come with the battery?
A: Yes. A sealed acid pack ships in the box along with a cell sealing strip and activation instructions. The acid pack holds exactly the volume this battery needs.

Q: How long does activation take?
A: About an hour of hands-on time plus a 4-6 hour charge. Five minutes to pour in the acid, 30 minutes to let the plates absorb, then 4-6 hours on a 0.3A smart charger before fitting.

Q: What's the warranty?
A: 18 months against manufacturing defects, from the date of purchase. Covers plate failures, case cracks and premature capacity loss. Damage from under-charging, incorrect activation or sulphation from long storage isn't covered.

Q: Can I mount it on its side?
A: Up to 30° off vertical, yes — the AGM mat holds the acid in place. Beyond 30° or fully inverted the pressure-relief valve can weep. Keep it as upright as possible for longest life.

Q: Will the YTX5L-BS fit the same tray?
A: Same 114 × 71mm footprint, but 20mm taller (106mm vs 86mm). The YTX5L-BS adds 30CCA and 1Ah — worth stepping up if your bike's tray has the headroom and you want more cranking margin.

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