Can I install a higher capacity battery in my Bührer RF RF21?

Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your Bührer RF RF21 battery compartment and the positive terminal position matches.

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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Bührer RF RF21

Batteries for Bührer RF RF21

Bührer · RF

Which battery does a Bührer RF RF21 need?

Specifications and battery: RF21

Bührer RF RF21: depending on the equipment, it takes a conventional 125 Ah, 720 A battery (349 × 175 × 285 mm) or a conventional 100 Ah, 600 A battery (413 × 175 × 220 mm). Measure your current battery before choosing.

Battery for this engine

Version	Technology	Capacity	Cold cranking (EN)	Size (L×W×H)	Polarity
Depending on equipment 1	Conventional	125 Ah	720 A	349 × 175 × 285 mm	+ on the left
Depending on equipment 2	Conventional	100 Ah	600 A	413 × 175 × 220 mm	+ on the right

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

🔧 Battery Expert Advisor

Battery analysis for your Bührer RF RF21

Quick answer Depending on the equipment, your vehicle uses one of these two main batteries: ordinary lead-acid 125 Ah (349×175×285 mm), for which we recommend VARTA J2, or ordinary lead-acid 100 Ah (413×175×220 mm): VARTA H5. Before buying, check the Ah on your current battery's label or measure its length.

Batteries in your Bührer RF RF21

MainDepends on equipmentSee all in the list →

Measure the height of yours: 285 or 220 mm

Our recommendation

VARTA J2

ordinary lead-acid125 Ah720 A

349 × 175 × 285 mm

€139.70Buy

Alternative

VARTA H5

ordinary lead-acid100 Ah600 A

413 × 175 × 220 mm

€159.90Buy

Prices and availability updated on 23/10/2026

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

📋 What we found

For your Bührer RF RF21 we found 9 compatible conventional batteries.

📏 Battery size

The list contains batteries in different sizes or capacities (Ah). In many cases both variants fit, but it's worth checking your compartment dimensions and the Ah of your original battery before buying. Choose the one with the same dimensions as your current battery: a bigger one may not fit the compartment or the hold-down. If several match your size, the higher capacity gives more headroom for cold starts.

📊 View AGM vs EFB vs Conventional — full comparison

⭐ Our recommendation

Our recommendation

For your Bührer RF RF21 we recommend the VARTA J2 (ordinary lead-acid, 125 Ah). Varta is the world's leading manufacturer of starter batteries and supplies first-equipment (OEM) batteries to the major European car makers.

Get it on Monday before 5 PM — your product ships today.
13% cheaper than the most expensive option in the list.

See this battery →

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Verified selection

Class: Batteries for Construction and Agricultural Machinery
Brand: Bührer
Model: RF
Engine: RF21

Order now with express shipping: your product ships today and arrives on Monday before 5 PM (Spain mainland and Portugal only).

Before you buy: check 3 key points

Although the batteries shown are sourced from information provided by manufacturers, we recommend checking on your current battery:

Dimensions (length × width × height, including terminals and protrusions)
The dimensions shown are the maximum of the battery and include the height of the terminals, small ridges at the base and any lateral protrusions. Measure your current battery completely, from edge to edge. The new one must be the same size or slightly smaller — never larger, it would not fit in the housing.
Positive terminal (left or right viewed from the front — check the battery photo carefully)
Stand facing the battery, with the manufacturer's label facing you and the terminals on top. Locate the terminal marked with +: if it is on your right, it is "positive right"; if it is on your left, it is "positive left". Do not rely on how the battery is mounted in the car — the position is always measured looking only at the battery itself.
Technology (AGM, EFB or conventional — the same as your current battery or higher)
Depending on the manufacturer, the same technology may be labelled differently: AGM may also appear as VRLA, AGM Start-Stop or AGM Deep Cycle. EFB may appear as EF, EFB+ or Enhanced Flooded Battery. Conventional may appear as SLI, Lead-Acid, Wet or Standard. If your vehicle has Start-Stop, the battery must be AGM or EFB — never conventional.

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

Conventional batteries

Standard lead-acid batteries.

9 products

Comparison table of available products
Category	Make	Reference	Capacity	Cold cranking	Dimensions	Technology	Price
Conventional batteries	VARTA	J2	125 Ah	720 A	349×175×285 mm	Conventional	€139.70	More info
Conventional batteries	TUDOR	TF1251	125 Ah	850 A	349×175×285 mm	Conventional	€122.10	More info
Conventional batteries	VARTA	I6	110 Ah	850 A	413×175×220 mm	Conventional	€174.60	More info
Conventional batteries	EXIDE	EF1251	125 Ah	850 A	349×175×285 mm	Conventional	€123.20	More info
Conventional batteries	VARTA	H5	100 Ah	600 A	413×175×220 mm	Conventional	€159.90	More info
Conventional batteries	TUDOR	TG1008	100 Ah	680 A	413×175×220 mm	Conventional	€180.10	More info
Conventional batteries	EXIDE	EG1008	100 Ah	680 A	413×175×220 mm	Conventional	€171.50	More info
Conventional batteries	EXIDE	EG1251	125 Ah	760 A	349×175×285 mm	Conventional	€136.20	More info
Conventional batteries	TUDOR	TG1251	125 Ah	760 A	349×175×285 mm	Conventional	€136.20	More info

Frequently asked questions

: Bührer RF RF21: depending on the equipment, it takes a conventional 125 Ah, 720 A battery (349 × 175 × 285 mm) or a conventional 100 Ah, 600 A battery (413 × 175 × 220 mm). Measure your current battery before choosing. We found 9 compatible batteries priced between 122,10€ — 180,10€. 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 Bührer RF RF21 battery compartment and the positive terminal position matches.
: 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.
: In mainland Spain and Portugal delivery takes 24 working hours if you order before 6:00 pm and the battery is in stock; for the Balearic Islands and other EU destinations allow 2 to 5 days. Batteries are shipped fully charged and ready to install.

Batteries for Bührer RF RF21

Which battery does a Bührer RF RF21 need?