Topcon Battery BT-G1W for Topcon Total Station GTS-330 GTS-3000

Model: BT-G1W

Specifications:

Highlights

• For Topcon GST-250 Series Total Station
• 9-hour battery life when measuring distances
• 40-hour battery life when measuring angles
• Protected against short circuit, overcharging & overheating
• Rechargeable NiMH
• 2-hour charging time
• 2700 mAh, 7.2V

Overview:

Durable and safe, the Topcon BT-G1W Rechargeable NiMH Battery is the best battery pack for the Topcon GTS-250 Series Total Station. It is a 7.2-volt NiMH type battery with a 2700 mAh capacity. It features stable circuitry and protection against short circuit, overcharging and overheating.

The Topcon BT-G1W battery only takes two hours to fully charge and keeps the total station operational up to nine hours when taking distance measurements. When only measuring angles, this battery can keep the total station working up to 40 hours.

New and stored batteries

New NiCd and NiMH batteries reach their maximum capacity only after a few charging and discharging cycles. The batteries should be fully discharged and charged three to five times. NiMH batteries that have been stored and not used for an extended period (more than a month) should be refreshed simularly. For Li-Ion batteries, a single discharging and charging cycle is sufficient.

Batteries in regular use

After use the battery can be placed in the charger until fully charged (the green light flashes). The charging time depends on the battery capacity and temperature.

Charging temperature

The charging temperature (ambient temperature) has a significant impact on the life of the batteries. Charging at high temperature can cause loss of capacity. These losses in capacity are irreversible. Even with several charging and discharging cycles, the original capacity can no longer be obtained. For optimal charging, we recommend that the batteries be charged at ambient temperatures as low as possible (+10 °C to +20 °C / +50 °F to +68 °F). The permitted temperature range in which charging can still be performed is between 0 °C and +35 °C (+32 °F and +95 °F).