Dolphin CT40 Mobile Computer 11
Battery Recommendations and Safety Precautions
• For maximum battery life, charge the battery at 20 °C (68 °F) to 25 °C (77 °F) 
and store at 20 °C (68°F) with a 30%-50% charge.
• Do not store the battery at temperatures above 60 °C (140 °F). Storage above 
60 °C (140 °F) may damage the battery.
• Charge the battery before use. Battery ships with only a partial charge.
• See Charge the Battery Before Use on page 5 for approved charging methods. 
Use of this battery in other devices could result in damage to the device or 
battery.
• Avoid dropping the battery or computer. If you suspect that the battery or 
computer is damaged, send it to Honeywell service center for inspection.
• Replace the battery only with another CT50-BTSC model battery (Battery Part 
Numbers, see page 4). This battery has been tested in accordance with 
applicable safety standards. Contact your Honeywell sales representative or 
distributor if this battery is no longer available.
• Discarded batteries may create a safety hazard. Before disposal, cover the 
battery contacts with electrical insulating tape.
• Do not modify the battery or attempt to insert foreign objects into it.
• Do not solder directly to the battery contacts.
• Do not drop the battery or apply mechanical shocks or pressure to it.
• Do not immerse batteries into, or expose them to, water or seawater.
• Do not incinerate, microwave, throw into a fire, or expose batteries to 
temperatures above the maximum rating.
• Do not dissemble a battery or try to open or penetrate its housing.
Enable Airplane Mode
If you do not need to connect to any wireless networks, you can enable Airplane 
mode to turn off the radios and save battery power.
1. Swipe up from the bottom of the Home screen to access all apps.
2. Tap Settings   > Network & Internet.
3. Tap Advanced.
Caution:   Improper battery replacement or incompatible device usage may 
result in risk of burns, fire, explosion, or other hazard. Dispose of 
lithium-ion batteries according to local regulations. Risk of fire and 
burns if improperly handled. Do not open, crush, heat above 60°C 
(140°F), or incinerate.