What battery does the Kymco 400 MXU use?

The Kymco 400 MXU may use different batteries depending on engine and equipment. We found 4 compatible batteries priced between 29,80€ — 75,60€. Check dimensions and positive terminal position before purchasing.

Can I install a higher capacity battery in my Kymco 400 MXU?

Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Kymco 400 MXU battery compartment and the positive terminal position matches.

Does my Kymco 400 MXU need a Start-Stop battery?

Yes, we detected Start-Stop compatible batteries for your Kymco 400 MXU. If your vehicle has Start-Stop, it needs an AGM or EFB battery. An AGM must always be replaced with AGM. An EFB can be replaced with EFB or AGM. Never install a conventional battery in a Start-Stop vehicle.

How do I find the right battery for my vehicle?

Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.

What warranty do the batteries have?

As they are consumable items, car batteries have a 2-year warranty, truck batteries a 1-year warranty, and all others (motorcycle batteries, cyclic batteries, etc.) a 6-month warranty. If a battery has a manufacturing defect, it will be replaced at no cost to the user.

How long does it take for the battery to arrive?

Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.

What dimensions do the Kymco 400 MXU compatible batteries have?

Batteries compatible with the Kymco 400 MXU have the following dimensions: 150–152 × 87–90 × 130–131 mm (length × width × height) Before buying, check the battery compartment size of your vehicle: a larger case will not fit even if the reference is technically compatible.

Kymco 400 MXU

Batteries for Kymco 400 MXU

Kymco · 400

Which battery does a Kymco 400 MXU need?

🔧 Battery Expert Advisor

Battery analysis for your Kymco 400 MXU

Quick answer You need an AGM battery of 10 Ah. Our recommendation: VARTA 510012015.

VARTA510012015

AGM10 Ah150 A152×88×131

€29.95

Buy

Prices and availability updated on 18/09/2026

Based on the batteries we found for your vehicle, our experts help you pick the right one.

📋 What we found

For your Kymco 400 MXU we found 4 compatible Start-Stop batteries.

⚡ Battery type for your vehicle

✓ Your Kymco 400 MXU uses the Start-Stop system. Every battery shown is compatible — no conventional options to confuse you.

🔋 Technology (AGM / EFB)

✓ All Start-Stop batteries in the list are AGM — the most advanced technology. Perfect if your current battery was AGM or EFB: AGM always replaces both. Remember to register it via OBD if your car has a BMS (BMW, Audi, VAG, Mercedes…) so the alternator charges it correctly.

📊 View AGM vs EFB vs Conventional — full comparison

Here are the key differences between the three starter battery technologies. AGM is the most advanced technology (and the priciest); EFB is the middle ground for basic Start-Stop; conventional (also called flooded lead-acid) is the classic choice for non-Start-Stop cars.

	AGM	EFB	Conventional
Charge cycles	Up to 3× more Start-Stop cycles than a conventional (cycle endurance certified to VDA standard)	~2× more Start-Stop cycles than a conventional (cycle endurance certified to VDA standard)	Designed for start + alternator, not for repeated cycles
Expected life	5-7 years under average use	4-5 years under average use	3-4 years under average use
Start-Stop compatible	✓ Yes, even advanced systems (regenerative braking)	✓ Yes, basic and mid-range Start-Stop	✗ No — degrades within months
Cold start	Excellent (higher CCA)	Very good	Adequate
Relative price	€€€ (highest)	€€ (mid)	€ (lowest)
Recommended for	Premium cars with advanced Start-Stop, many electrical accessories, heavy urban use	Mid-range Start-Stop cars, mixed city/motorway use	Non-Start-Stop cars, standard use, tight budget
Replacement rule	Replaces AGM and EFB; NEVER use EFB where AGM was original	Replaces EFB and conventional; does NOT replace AGM	Only conventional; not suitable for Start-Stop

⭐ Our recommendation

Our recommendation

For your Kymco 400 MXU we recommend the VARTA 510012015 (AGM, 10 Ah). It also offers the highest capacity (Ah) and the highest cranking power (CCA) on the list — more headroom in cold starts and with many consumers. Varta is the world's leading manufacturer of starter batteries and supplies first-equipment (OEM) batteries to the major European car makers.

Rated 4.8/5 by 61 verified customers.
Next-day delivery if you order before 5 PM.
46% cheaper than the most expensive option in the list.

See this battery →

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Verified selection

Class: Jet Ski Batteries
Brand: Kymco
Model: 400
Engine: MXU

Order now with express shipping: your product ships today and arrives on Monday before 2 PM (Spain mainland and Portugal only).

Before you buy: check the JIS code on your battery

On motorcycles, the definitive identifier is the JIS (Japanese Industrial Standard) code printed on the original battery — for example YT12B-BS, YTX9-BS or YB12AL-A2. It identifies the model 100%: dimensions, capacity, polarity and terminal type.

Make sure the JIS code of the battery you are buying matches the one on your current battery
How to find the JIS code on your battery: it is printed on the manufacturer's label, usually on the top or front face of the battery, next to the voltage and capacity. It typically starts with Y (Yuasa) followed by letters and numbers: YT, YTX, YTZ, YB, YT-BS, etc. Some brands use parallel equivalents (FT, GT, BT, EB) — all follow the JIS standard. If the code of the battery you are buying matches yours (same letters and numbers before the «-BS» / «-A2»), it is the correct battery. If it differs even by a single digit, the dimensions or capacity do not match and it will NOT fit.

If you have any questions, just ask us and we'll be glad to advise you with no obligation.

Start Stop Battery

Battery for start-stop vehicles. Also a strong choice for more cycles, better charge recovery and longer service life.

4 products

Tabla comparativa de productos disponibles
Categoría	Make	Referencia	Capacidad	Arranque en frío	Medidas	Tecnología	Price
Start Stop Battery	VARTA	510012015	10 Ah	150 A	152×88×131 mm	AGM	€29.95	Más info
Start Stop Battery	EXIDE	ETX12-BS	10 Ah	150 A	150×90×130 mm	AGM	€29.80	Más info
Start Stop Battery	VARTA	510909017	10 Ah	170 A	150×87×130 mm	AGM	€75.60	Más info
Start Stop Battery	EXIDE	AGM12-10	10 Ah	150 A	150×90×130 mm	AGM	€55.20	Más info

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Frequently asked questions

: The Kymco 400 MXU may use different batteries depending on engine and equipment. We found 4 compatible batteries priced between 29,80€ — 75,60€. Check dimensions and positive terminal position before purchasing.
: Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Kymco 400 MXU battery compartment and the positive terminal position matches.
: Yes, we detected Start-Stop compatible batteries for your Kymco 400 MXU. If your vehicle has Start-Stop, it needs an AGM or EFB battery. An AGM must always be replaced with AGM. An EFB can be replaced with EFB or AGM. Never install a conventional battery in a Start-Stop vehicle.
: Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.
: As they are consumable items, car batteries have a 2-year warranty, truck batteries a 1-year warranty, and all others (motorcycle batteries, cyclic batteries, etc.) a 6-month warranty. If a battery has a manufacturing defect, it will be replaced at no cost to the user.
: Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.
: In mainland Spain and Portugal delivery takes 24 working hours if you order before 17:00 and the battery is in stock; for the Balearic Islands, the Canary Islands and other EU destinations allow 2 to 5 days. Batteries are shipped fully charged and ready to install.
: Batteries compatible with the Kymco 400 MXU have the following dimensions: 150–152 × 87–90 × 130–131 mm (length × width × height) Before buying, check the battery compartment size of your vehicle: a larger case will not fit even if the reference is technically compatible.

Batteries for Kymco 400 MXU

Which battery does a Kymco 400 MXU need?