Batteries STIHL for winter storage should be kept clean, dry, and charged to approximately 40 to 60% (often two green LEDs), in a cool room temperature and away from frost or heat. Disconnect the charger from the mains and store it separately. This procedure reduces the risk of deep discharge and premature aging. The same logic also helps with other rechargeable garden equipment in the store, but the instructions of the specific battery STIHL always apply.

At Zakservices in Senica, we help set up winter storage according to the type of battery and charger. Below is a practical procedure without unnecessary theory.

What you will learn in this article

what state of charge (SOC) is suitable for long-term storage
what temperatures are good for batteries and chargers
how to prepare a battery and charger before winter
how often to check and when to charge
myths, mistakes, FAQ, and contact in Senica

Why winter storage determines durability

Lithium-ion batteries STIHL have low self-discharge, but they are not indestructible. In winter, they are most often damaged by deep discharge, long storage at 100% in heat, moisture on the contacts, or charging in the frost.

Proper storage is cheaper than replacing the battery in the spring. This applies to battery-powered lawn mowers, brushcutters, chainsaws, blowers, and other machines STIHL that you rotate during the season.

State of charge (SOC): how many percent to leave

Recommended storage range for STIHL is typically from 40 to 60%. On the indicator, this often corresponds to two green LEDs. Some manuals for the AP series state a range of approximately 40 to 80% (two to three green LEDs) for maximum battery life. If in doubt, follow your battery's manual and aim more toward the middle of the range.

What not to do: - do not leave the battery completely discharged (risk of deep discharge and permanent damage) - do not leave it at 100% for months if it is not necessary - do not leave it plugged into the charger for months "just to be safe"

Practical procedure before storage: 1. After the season, clean the battery with a dry cloth. The contacts should be dry and free of dirt. 2. Check the LED charge indicator. 3. If the battery is almost empty, charge it to the range of 40 to 60%. 4. If it is full and will have a long pause, use it briefly or leave it in the recommended range according to the manual. 5. Remove the battery from the machine and store it separately.

Approximately: two green LEDs are a good winter target. Fully charge the battery before the first spring work.

Temperature: where the batteries hibernate

Batteries STIHL prefer a stable, dry, and slightly cool environment.

Guidelines according to common recommendations STIHL (always check the manual): - ideal storage often approximately from 10 to 20 °C - wider storage range usually from −10 to +50 °C - charging generally from 5 to 40 °C (below approximately 5 °C the charger will refuse or delay charging)

Where to store: - a dry room in the house, a basement without humidity, a heated garage - away from direct sunlight, radiators, stoves, and cars in the summer - out of reach of children and animals - not outside under a roof in severe frost, if you have a better room

If the battery has gotten too cold or overheated, let it adjust to room temperature. Do not heat it with a hair dryer or on a radiator.

Chargers STIHL: what to do with them during winter

Use only original STIHL AL series chargers intended for the given battery. A foreign charger may damage the battery.

Charger Checklist: - After charging, unplug the power cord from the socket - Remove the battery from the charger and store it separately - Store the charger in a dry place, typically between 5 and 40 °C - Protect it from dust, moisture, and impacts - Do not operate the charger outdoors in rain or frost

A charger is not a storage stand for the whole winter under power. It is meant to charge, then disconnect.

Preparation before winter: a short checklist

Clean the machine and remove the battery.
Wipe the battery, check the casing and contacts. Do not use a damaged battery and consult a service center.
Set the SOC to approximately 40 to 60% (or according to the manual).
Disconnect the charger and store it separately.
Store the batteries in a dry place, away from frost and heat, out of reach of children.
Mark the inspection date in the calendar (for example, at intervals of 1 to 2 months).
Rotate spare batteries. Do not leave a battery that is not used for a long time "at the bottom of a drawer" without checking.

For robotic mowers STIHL iMow or Cub Cadet, a separate manual for winter mode and storage temperature applies. Here we deal mainly with replacement batteries STIHL for manual and garden equipment.

Regular check during the winter

Self-discharge is low, but checking is worthwhile.

Recommendation: - check the LED status at intervals of 4 to 8 weeks - if you drop significantly below the recommended range, recharge back to approximately 40 to 60% - charge fully before the season and do a short test run - if you have multiple batteries, rotate them so that one does not sit idle for years

If the battery lasts significantly less than last season, or the LEDs report an error, have it checked. At Zakservices in Senica, we will help assess whether it is normal aging or damage.

What also applies to other battery technology in the store

The principles are similar with other battery-powered machines of brands we work with (for example, selected equipment in the garden range). However, it still holds that: - the instructions of the specific manufacturer and model apply - the charger must be intended for the given battery - moisture, frost, and deep discharge are almost always harmful

If you have a combination of battery-powered STIHL and gasoline equipment MTD, WOLF-Garten, Cub Cadet, SUPA TECHNIKA, or DAKR at home, handle the batteries according to this article and the combustion machines according to the autumn checklist (fuel, oil, blade).

Common myths and mistakes

Myth or mistake	Reality
The battery should always be stored fully charged at 100%	For a long break, a level between 40 and 60% is better
Completely discharge it before winter "so it can rest"	Deep discharging harms the battery
Can stay in the connected charger all winter	After charging, disconnect from the mains and remove the battery
Any charger is sufficient	Use the original STIHL AL for the given battery
A freezing garage is always fine	Adhere to temperature limits and dryness. The ideal is room stability
Charging directly from frost is okay	First temper, charge above approximately 5 °C
You don't need to check the LED for months	A short check at intervals of 1 to 2 months is enough and will prevent surprises

Table: quick overview of winter storage

Item	Recommendation
SOC for storage	approximately from 40 to 60% (often 2 green LEDs)
Ideal temperature	approximately from 10 to 20 °C
Wider storage range	according to the instructions, commonly from −10 to +50 °C
Charging	usually from 5 to 40 °C, original STIHL AL
Place	dry, indoors, away from children and sunlight
Charger during winter	disconnected from the grid, stored separately
Check	at intervals of 4 to 8 weeks
Before the season	full charge and short test

Always check the exact values in the manual for your battery and charger STIHL.

Safety in storage and charging

charge only in dry conditions and within the allowed temperature range
do not open the battery case or attempt to repair it yourself
do not use damaged, swollen, or leaked batteries
do not put batteries in fire or regular household waste
do not cover the charger with a cloth while charging and allow it to breathe
keep children away from batteries and chargers

If the manufacturer's instructions say otherwise than this general article, the instructions apply.

When to come to the service or consultation

Come to Zakservices in Senica when: - the battery lasts significantly less than before - the LEDs indicate an error, charging does not start at all, or charging keeps interrupting - the case is damaged, contacts are corroded, or the battery is unusually hot - you are not sure if you have the correct AL charger for the given series (AK, AP, etc.) - you want to check the entire battery set (machine, batteries, charger) before the season

We will personally check the stock and availability of specific batteries and chargers. Please bring the model numbers or take a photo of the label.

Frequently Asked Questions (FAQ)

1. To what percentage should you charge the battery STIHL before winter?

Typically to about 40 to 60% (often two green LEDs). Some manuals allow up to around 80%. Do not store it empty.

2. Can I leave the battery in the machine?

It is better to remove it and store it separately. Both the machine and the battery should be clean and dry. Store the activation and keys according to the type of machine out of the reach of children.

3. How often should the battery be checked during winter?

Approximately at intervals of 4 to 8 weeks. If it drops below the recommended range, gently recharge.

4. Can it be charged in a cold garage?

Only if the temperature is within the allowed charging range (usually above 5 °C). In frost, first warm the battery in a room.

5. Should I leave the charger plugged in all the time? No. Disconnect from the mains after charging. In winter, store the charger dry and separately from the battery.

6. Is there a difference between the AK and AP series?

Yes, in terms of performance and usage, but the winter logic is similar: dry, correct SOC, correct AL charger, no deep discharge. Details always according to the manual.

7. What if I left the battery completely discharged all winter?

Try charging it according to the manual. If it does not charge, shows an error, or holds very little, have it checked at a service center. Next time, get it into a safe range before storage.

8. Does this apply to any lawn mowers and other machines in the store?

The principle is yes. Specific temperature and charging limits should always follow the instructions for the given battery. For gasoline machines MTD, WOLF-Garten, Cub Cadet, SUPA TECHNIKA, or DAKR, focus mainly on fuel, oil, and cleanliness, not the battery.

We will help you in Zakservices Senica

If you are unsure about the charge status, the choice of charger, or winter storage of batteries STIHL, come with the battery and a brief description (age, capacity, error LEDs). In Zakservices in Senica, we advise on the storage and inspection of battery sets according to the current stock.

Zakservices, Ltd. Obchodná 493/2A, 905 01 Senica (white building opposite the Kaufland parking lot) Tel.: 0904 446 915, 034/651 7072 E-mail: zakservices@zakservices.sk Web: https://zakservices.sk) and https://zakservices.pages.dev/)

We will check the specific batteries, chargers, and availability in person.

Winter storage of batteries and chargers STIHL