I-GO Crest CSS, User Manual

PAGE 17

6.1 BATTERY

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The Crest CSS Power Chair uses two long-lasting, 12 volt, deep-cycle batteries. 
These batteries are sealed and maintenance free. Since they are sealed, there is 
no need to check the electrolyte (fluid) level. Deep-cycle batteries are designed to 
handle a longer and deeper discharge. Though they are similar in appearance to 
automotive batteries, they are not interchangeable. Automotive batteries are not 
designed to handle a long, deep discharge and are unsafe for use in  
power chairs.

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These batteries are maintenance free and there is no need to refill with water. 

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Do not expose the battery to temperatures below -10°C or above 50°C when 
charging or storing the power chair. Outside the above temperature range can 
cause the battery either to freeze or overheat, causing damage and shortening 
its life.

6. BATTERY CHARGING & CARE

6.2 CHARGING THE BATTERIES

The battery charger is essential in providing long battery life. Located underneath the 
utility tray, it is designed to optimize your Crest CSS’s performance by charging safely, 
quickly and easily. The power chair ammeter and charger plug are located on the utility 
tray for easy viewing. The ammeter indicates the rate of charge being administered to 
fully recharge the batteries. It is also a good indication of whether or not the charger 
is working. The ammeter and the charger are only functional when the charger power 
cord is plugged into a wall outlet. 

Warning

Battery posts, terminals and related accessories contain lead and lead  
compounds. Wash hands after handling!

Use proper batteries

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Your power chair operates on two 12 volt batteries.

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They should be a minimum of 20 ampere hour rating. Only deep 
cycle sealed case construction batteries should be used in the power chair.

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When you buy a replacement, insist on a deep cycle sealed case. Do not use  
any other type.