What battery does the SYM HD HD 300 use?

SYM HD HD 300 (26 hp, petrol, from 2019) takes a 11 Ah, 160 A AGM battery (150 × 88 × 105 mm), with the positive terminal on the left. We found 1 compatible batteries. Check dimensions and positive terminal position before purchasing.

Can I install a higher capacity battery in my SYM HD HD 300?

Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your SYM HD HD 300 battery compartment and the positive terminal position matches.

What type of battery does my motorcycle need?

Motorcycles can use GEL, AGM, or conventional batteries. GEL batteries are ideal for occasional use. AGM batteries are the best option for heavy use or high-power motorcycles. Always check the polarity before installation.

How do I know the polarity of my motorcycle battery?

Polarity indicates which side has the positive (+) terminal. This is critical for motorcycles because some models have the positive terminal on the left and others on the right. Check the label on your current battery or the manufacturer's manual.

Can I install my motorcycle battery myself?

Yes. First disconnect the negative (−) wire and then the positive (+) wire. When installing the new one, connect the positive (+) wire first and then the negative (−) wire. Always respect the correct polarity.

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?

All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. 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.

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SYM HD HD 300

Batteries for SYM HD HD 300 26 hp (petrol, from 2019)

SYM · HD

Which battery does a SYM HD HD 300 need?

Specifications and battery: HD 300 (26 hp)

SYM HD HD 300 (26 hp, petrol, from 2019) takes a 11 Ah, 160 A AGM battery (150 × 88 × 105 mm), with the positive terminal on the left.

Recommended battery for this engine Motorcycle battery Varta YT12A-BS Powersports AGM (511901014) 12V 11Ah 160A AGM €43.20 incl. VAT

View battery →

Brand: SYM
Model: HD
Built: 2019 - 2026
Fuel: Petrol
Cylinders: 1
Drive: Vario

Battery for this engine

Version	Technology	Capacity	Cold cranking (EN)	Size (L×W×H)	Polarity
Main	AGM	11 Ah	160 A	150 × 88 × 105 mm	+ on the left

Data: vehicle specifications and the battery manufacturer's application catalogue.

EFB, AGM or conventional for this engine?

Rule of thumb for the SYM HD HD 300: fit the same technology as the original or better (conventional → EFB → AGM), with equal or higher capacity and cold cranking amps, and respect the size and terminal position of around 11 Ah.

🔧 Battery Expert Advisor

Battery analysis for your SYM HD HD 300

Quick answer You need an AGM battery of 11 Ah. Our recommendation: VARTA AGM.

VARTAAGM

AGM11 Ah160 A150×88×105

€43.20

Buy

Prices and availability updated on 10/11/2026

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

📋 What we found

For your SYM HD HD 300 we found 1 compatible AGM or EFB battery.

📊 View AGM vs EFB vs Conventional — full comparison

⭐ Our recommendation

Our recommendation

For your SYM HD HD 300 it's the recommended battery: VARTA AGM. Its specs: AGM technology, 11 Ah capacity, 160 CCA cranking power, 150×88×105 mm dimensions.

See this battery →

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Verified selection

Class: Motorcycle Batteries
Brand: SYM
Model: HD
Engine: HD 300

Receive them tomorrow before 5 PM if you order before 6 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.

AGM / EFB batteries

AGM or EFB technology batteries: more charge cycles, faster recovery and a longer life than a conventional battery.

1 product

Recommended
Motorcycle battery Varta YT12A-BS Powersports AGM (511901014) 12V 11Ah 160A AGM
- 12 V
- 11 Ah
- 160 A
- AGM
Dimensions 150×88×105 mm
- ✓ Varta brand
€43.20
Compare

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
AGM / EFB batteries	VARTA	511901016	11 Ah	160 A	150×88×105 mm	AGM	€43.20	More info

Frequently asked questions

: SYM HD HD 300 (26 hp, petrol, from 2019) takes a 11 Ah, 160 A AGM battery (150 × 88 × 105 mm), with the positive terminal on the left. We found 1 compatible batteries. 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 SYM HD HD 300 battery compartment and the positive terminal position matches.
: Motorcycles can use GEL, AGM, or conventional batteries. GEL batteries are ideal for occasional use. AGM batteries are the best option for heavy use or high-power motorcycles. Always check the polarity before installation.
: Polarity indicates which side has the positive (+) terminal. This is critical for motorcycles because some models have the positive terminal on the left and others on the right. Check the label on your current battery or the manufacturer's manual.
: Yes. First disconnect the negative (−) wire and then the positive (+) wire. When installing the new one, connect the positive (+) wire first and then the negative (−) wire. Always respect the correct polarity.
: 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.
: All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. 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.

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