Batteries for the SPS985/SPS986 smart antenna

The SPS985/SPS986 GNSS smart antenna uses one Lithium-ion battery which can be charged when it is plugged into an external power source through Port 1 and the external voltage is greater than 11.8 V DC. Alternatively, the battery can be removed for charging.

During measurement operations, each internal battery typically provides more than 4 hours of power if using the internal Rx (receive) radio hours operating as a base station using the internal transmit radio. These times vary according to the type of measurement and the operating conditions.

When using an SPS985/SPS986 GNSS smart antenna in Rover mode receiving CMR corrections via an internal radio, a new battery should last about hours. You may see lower battery life with older batteries or batteries that are not 2.8 Ah (P/N 92670).

Battery safety

Charge and use the battery only in strict accordance with the instructions provided.

Do not damage the rechargeable Lithium-ion battery. A damaged battery can cause an explosion or fire, and can result in personal injury and/or property damage.
To prevent injury or damage:

Do not use or charge the battery if it appears to be damaged. Signs of damage include, but are not limited to, discoloration, warping, and leaking battery fluid.
Do not expose the battery to fire, high temperature, or direct sunlight.
Do not immerse the battery in water.
Do not use or store the battery inside a vehicle during hot weather.
Do not drop or puncture the battery.
Do not open the battery or short-circuit its contacts.

Avoid contact with the rechargeable Lithium-ion battery if it appears to be leaking. Battery fluid is corrosive, and contact with it can result in personal injury and/or property damage.
To prevent injury or damage:

If the battery leaks, avoid contact with the battery fluid.
If battery fluid gets into your eyes, immediately rinse your eyes with clean water and seek medical attention. Do not rub your eyes!
If battery fluid gets onto your skin or clothing, immediately use clean water to wash off the battery fluid.

Do not charge the battery if the ambient temperature exceeds 40 °C (104 °F) or is below 0 °C (32 °F).

Do not charge or use the battery if it appears to be damaged or leaking.

Do not store batteries in extreme cold or hot environments. If stored in cold, the damage may not be permanent and may only last for that particular charge. Storing batteries in hot environments can cause permanent damage.

Connecting the receiver to a vehicle battery

Use caution when connecting battery cable's clip leads to a vehicle battery. Do not allow any metal object or jewelry to connect (short) the battery's positive (+) terminal to either the negative (-) terminal or the metal of the vehicle connected to the battery. This could result in high current, arcing, and high temperatures, exposing the user to possible injury.

When connecting an external battery, such as a vehicle battery, to the receiver, be sure to use the Trimble cable with proper over-current protection intended for this purpose, to avoid a safety hazard to the user or damage to the product.

Charging the Lithium-ion battery

The rechargeable Lithium-ion battery is supplied partially charged. Charge the battery completely before using it for the first time. If the battery has been stored for longer than three months, charge it before use.

Charge and use the rechargeable Lithium-ion battery only in strict accordance with the instructions. Charging or using the battery in unauthorized equipment can cause an explosion or fire, and can result in personal injury and/or equipment damage. To prevent injury or damage:

Do not charge or use the battery if it appears to be damaged or leaking.
Charge the Lithium-ion batteries only in a Trimble battery charger, such as the dual battery charger P/N 53018010 (grey), or the five-battery system charger P/N or 51693-HH (yellow/grey), or another charger specified for this battery. Be sure to follow all instructions that are provided with the battery charger.
Discontinue charging a battery that gives off extreme heat or a burning odor.
Use the battery only in Trimble equipment that is specified to use it.
Use the battery only for its intended use and according to the instructions in the product documentation.

To charge the battery, first remove the battery from the receiver, and then place it in the battery charger, which is connected to the power supply.

Battery charger

The charger can charge two types of Lithium-ion batteries—the SPS total station type and the SPS GNSS type. The charger can be powered by AC power or a vehicle battery. The following figure shows the battery, dual-slot battery charger (P/N ), GPS battery (P/N 92670-HH), AC power supply (P/N ), and AC power cable (P/N 78651):

The Dual-Slot Charger Kit consists of:

Charger dual-battery slot
Power supply for charger
Cable AC kit for power supply – AC power supply is an external adapter that can be used worldwide. Different cords for different countries are supplied with the adapter.

Power supply

The charger can be powered by AC power (using the power supply for the charger) or by car voltage (12 V using a Car to Dual-Slot Car charger).

The charger can be powered by vehicle voltage of nominal 12 V. It can withstand voltages of a vehicle voltage of nominal 24 V (maximum 32 V). So if you connect the vehicle cable by mistake to a 24 V socket in a vehicle, the charger does not start charging, but latches in fault condition and flashes all green LEDs. The power must be removed to reset the fault condition.

Chargeable batteries

The charger can charge a Lithium-ion rechargeable battery, 2.8 Ah, 7.4 V (P/N 92670-HH).

Charger slots

The charger has two slots. Each slot can charge either type of battery. Beside each slot are two LED indicators to indicate the battery status.

LED status indicator	Red	Green
No battery detected (no battery is present or there is a battery defect)	On	Off
Battery detected (charging not started yet)
Conditioning not required Conditioning required	Off Blinking	Off Off
Charging in progress
Conditioning not required Conditioning required Over/under-temperature (charger is inhibited)	Off Blinking One flash every 2.5 seconds	Blinking Blinking Blinking
Conditioning in progress	On	Blinking
Conditioning done (battery is fully charged)	On	On
Battery fully charged
Conditioning not required Conditioning required	Off Blinking	On On
Power supply over/under-voltage	Off	One flash every 2.5 seconds

Batteries are charged sequentially. If you place two batteries at the same time in the charger, the charger will charge the battery that it detects first. When that battery is fully charged or after it has been continuously charging for four hours, it will then start charging the next battery.

Charging the battery

The battery is supplied partially charged. Charge the battery completely before using it for the first time.

To charge the battery, use only a charger that is recommended by Trimble for charging the Lithium-ion battery.
Charge the battery before using the SPS GNSS if the equipment has been stored for longer than six months.

The charger operates if the ambient temperature around the charger is between 5 °C and 40 °C (41 °F and 104 °F). Charging a battery at temperatures in the range of 0 °C to 5 °C (32 °F to 41 °F) will take longer than charging at room temperature.

It typically takes about three hours to fully charge a battery (six hours for two batteries). When charging, the first 80% of capacity comes in quickly, usually within 1.5 hours. The last 20% could take up to 2.5 hours.

If the batteries move during the charge and lose contact with the contacts, the charging will take longer, but it should not count as a new charging cycle.

To charge the battery:

Ensure that the vents in the back and bottom of the charger are unobstructed.
Place the charger on a hard, flat and level surface, to ensure that there is airflow under the charger.
To apply power to the charger, use the AC to DC converter or 12 V cigarette plug. The charger scans the slots for a battery.
Place the battery in any of the slots. The Red light turns off (can take up to 5 seconds). For an explanation of the LED, see LED Status Indicator above.
Charging takes approximately three hours per battery at room temperature. If several batteries are charging in the battery charger, the batteries will be charged sequentially, from left to right.

Leave a deeply discharged or shorted battery overnight in the charger to attempt to revive the battery. A shorted battery is typically revived as soon as the slot is scanned. If the Red LED turns off, the battery is revived. If the Red LED stays on, the battery is no longer functional and needs to be replaced.

Battery life

You should expect the battery to take 300 charges. Some batteries may last up to 500 charges. The battery life will decrease over time as the battery is used more, especially if the batteries are used in hot areas or in high current situations, like a base station.

It will not harm the battery if it is half used before you place it in the charger. You do not need to drain the battery fully. However, charging a half-used battery still counts toward the number of expected battery chargers over the life of the battery.

There is no memory build up with these batteries. Trimble recommends that you store the battery when it is fully charged. Batteries may experience a 5 to 20% discharge per month when they are not being used. If the battery is stored for weeks at a time fully discharged, a significant loss of charging capacity could occur.

Temperature considerations

In general, you will see a decrease in battery runtime if the batteries are used in colder temperatures. Higher temperatures are better for battery operation as long as the temperature does not exceed 40 °C (104 °F). If operating in less than 5 °C (41 °F), there will be significant decrease in battery runtime. If the battery has been stored at less than 5 °C (41 °F), it may not work at all until it is stored at room temperature (20 °C to 25 °C (68 °F to 77 °F). Batteries should not be used if temperatures are below -20 °C (-4 °F) or above 50 °C (122 °F).

Removing the battery from the smart antenna

Open the battery slot, which is on the side of the .
Pull the battery out of the slot.

Troubleshooting

Possible cause	Solution
Battery is not detected (the red LED does not turn off)	Correctly insert the battery into the battery charger slot.
Battery contacts contaminated	Clean the battery (by inserting and removing the battery several times) or replace the battery.
Deeply discharged	Leave the battery overnight in the charger to attempt to revive the battery.
Battery defective	Replace the battery.

Technical data

Power supply
AC Input Voltage	100 to 240 V AC+/-10 %
AC Frequency	50 to 60 Hz
DC Output Voltage	19 V
DC Output current	Approximately 3.5 A
Charger	DC Power Input Voltage
Operation 10 V to 21 V	Unit switch off if voltage is out of range
DC Power Input Voltage limits	8 V to 32 V
Absolute maximum input	32 V
Voltage
Over voltage	21 V to 32 V
Working voltage	10 V to 21 V
Under voltage	< 10 V
Charging
Sum of charge time for all batteries	5 to 6 hours to charge two batteries
Charger in 1st hour	> 60 %