Replace stair lift battery is a duty owners of stair lift for home and office should fulfill. Stair lift used to run alternate current or AC power.This is done by having the electric cable lined along the track of the stair lift to supply the alternating current. Wheelchair manufacturers such as Stannah, A1, Acorn and Bruno have designed their own method of supplying the AC current to power the stairlift. AC powered stair lifts are plugged into the household or building electrical system. Therefore, in the event of a power blackout in the building, the stairlift will stop working altogether. This will pose a hazard to users of stair lifts, mainly wheelchair bound or elderly people. They will not be able to evacuate the building in time. The AC electrical wiring can also trip leading to fire or electrocuting users. Stair lift also move in a stop start manner as AC current is not stable by nature.

Advantages of Direct current DC powered stair lifts.
DC powered stair lifts are essentially powered by DC power source. DC power has many advantages over AC power. First and most important is that the direct power source is easy to install and maintain. DC powered stairlift has a standalone rechargeable battery. The stair lift battery needs to be plugged into a wall socket to recharge. The normal household power supply of 240V will be stepped down to 24-38V direct current for the stairlifts.The fact that a DC battery can operate the stair lift without constant power connection is its biggest advantage. During power outages, the stair lift is still able to perform its duty and move users up and down the steps with ease. It can still operate for around 20 up/down times before the stairlift battery goes flat. DC battery is also quieter than AC power source. If it is a curved stair lift, a DC battery with stationary charging is the best option.

Charging stair lift battery
The different stair lift manufacturers have their own methods of charging the handicap stair lift batteries and they generally fall into two methods.Stationary charging or using charging strips. Stationary charging refers to the case when the stair lift is at either end of the track and locked in its position where charging can take place. Each end is called a charging point where the stairlift fits into the positive and negative ends of a charging point. It it is not properly fitted in position, the user will hear a beep sound to remind him to do further adjustments. Charging strips are lined along the tracks of the stair lift as it moves and also charging itself at the same time. This will ensure the batteries stay fully charged all the time. However, this system has its disadvantage as there are more parts of the charging system which needs to be maintained and higher possibility or error due to wear and tear from the constant movements of the stair lifts.

The rechargeable stairlift battery pack is sold in a sealed unit and is usually a direct replacement. It is like replacing the batteries from your household controllers.It can hold a better charge too. Stair lift batteries will have to replaced between 1 to 2 years of usage as the battery's fluid runs out.
If the user were to purchase used stair lifts, the old battery pack definitely has to be replaced.

The power and current ratings are usually 12Volts (V) and 7 Ampere hour (Ah).
The job or replacing stair lift batteries belong to qualified technicians but users can also try changing the batteries themselves. Stair lift manufacturers will provide a user manual or guide on how to change the stair lift batteries. Users have to be careful if they wish to replace stair lift battery themselves. First is to remove the charging source and plug out the power plug. Second is to remove the seat or carriage cover and safety edges. All the while, users are reminded not to touch any naked or messed up the internal wiring. Third step is to remove the connections to the stair lift batteries and remove them one by one. Place the new batteries, double check to make sure their polarity is correct, otherwise, you will cause system short circuit and cause the main circuit board to malfunction. Retrace the above steps to get the stair lift fully functioning on new batteries. You might be wondering where to buy stair lift batteries, it can be bought at your local authorized dealers of the stair lift. You can also refer to the manufacturer's website to purchase the battery packs.