ProBatteri
Four times the revenue in 15 months — and a ROAS that finally stayed where it needed to be.
Tech stack in this case study
Case studies
400+
Trustpilot
4.8
Years of experience
10+
The results
Four times as much revenue in 15 months
ProBatteri.dk refurbishes e-bike batteries. Instead of buying a new battery, customers have their existing one refurbished — cheaper for the customer and significantly more sustainable. acend has managed Google Ads, Meta and SEO for 1 year and 3 months.
4x
as much revenue in 15 months
30%
revenue growth every month
- Blended ROAS increased from 2 to 4 on Google Ads and 5 on Meta — target reached and maintained.
- Monthly ad spend grew from 60,000 to 150,000 kroner without a drop in returns.
Combining high ROAS with growing spend is the hard part. It has worked because the messaging, channel structure and budget allocation work together.
The problem
Two requirements that had to be met at the same time
ProBatteri needed a ROAS above 4 while both spend and revenue grew. Without a clear story about refurbishment, advertising would become expensive, because you are paying to reach people who do not know what they are looking at.
ROAS above 4 without stalling growth
ProBatteri had worked with several agencies, none of which could deliver what the business needed: a ROAS consistently above 4 while both spend and revenue grew.
High returns are easy to show if you scale back
It is easy to show a high ROAS if you reduce spending and only go after the safest clicks — but then the business does not grow. That was not the way forward for ProBatteri.
Growth without returns is just as easy to buy
Conversely, it is easy to buy growth by raising the budget if you accept a drop in returns. ProBatteri needed both at once, and that was exactly where previous partnerships had run out of steam.
The customer doesn't know the product exists
They sell something many people do not know exists. When an e-bike battery fails, the immediate thought is to buy a new one — not have the old one refurbished. Customers first need to understand that the option exists, and then why it is worth choosing.
The solution
The core story first — then budget where the returns are
Communication was the starting point. When a product requires customers to understand something new, bidding is not what determines the result — it is whether the message lands. On the technical side, it is about continually moving spending to where it delivers the most.
Messaging first
When a product requires customers to understand something new, bidding is not what determines the result — it is whether the message lands. We made it clear what refurbishment is, what customers save and why it is the better choice. This was followed by ongoing content development and advice on USPs, so ads across channels say the same thing and say it clearly.
4x
as much revenue in 15 months
Search and Shopping by decision stage
Search and Shopping are segmented according to where customers are in the decision-making process, and products and campaigns are adjusted based on what performance analysis reveals. This makes it possible to move spending to where returns are highest.
2 → 4
ROAS on Google Ads
Budget moves across channels
Because we manage Google Ads, Meta and SEO, the budget can move across channels rather than each channel fighting for its own share. This is the mechanism that made it possible to increase spending from 60,000 to 150,000 kroner per month without a drop in returns.
5
ROAS on Meta
Because we manage Google Ads, Meta and SEO together, the budget can move across channels rather than each channel fighting for its own share. This is the mechanism that made it possible to increase spending from 60,000 to 150,000 kroner per month without a drop in returns — precisely the point where previous attempts had stalled.
60.000 → 150.000
DKK in monthly spend
2 → 4
ROAS on Google Ads
The creatives
Creatives from the campaigns
Vertical 9:16 creatives that speak directly to the core story of refurbishment.
The partnership
Management, guidance and flexibility
acend handles almost everything. Google Ads, Meta and SEO are managed and optimised together in one place, which is essential to moving budget to where returns are highest. No lock-in, one month's notice.
Monthly reporting
Ongoing advice on seasons, campaigns and sales.
All operations in one place
Google Ads, Meta and SEO are managed and optimised together, which is essential to moving budget to where returns are highest.
No lock-in
One month's notice. The partnership has to make sense month after month.
Team acend
The team behind this case study
Valdemar Greve
Consultant
valdemar@acend.dk
Frederik Krøl Larsen
CCO & Partner
frederik@acend.dk
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