Battery Equivalents and Replacements

AIMTOM SPS-300 300-Watt Portable Power Station

AIMTOM SPS-300 is a versatile portable power station based on a large lithium-ion battery pack that stores 280 Wh of energy.

Thanks to its compact and lightweight design, several different charging options, numerous output ports, AIMTOM SPS-300 is a very popular mid-range portable power station.

Published: February 22, 2021.

aimtom sps 300 1

AIMTOM SPS-300 Features and Specifications

AIMTOM SPS-300 physical dimensions are 7.5 x 5.5 x 5.9 inches (~19 x 14 x 15 cm) and it weighs 7.31 pounds (~3.3 kg) - unit is small enough to fit even in a larger backpack and if it has to be carried on shorter distances, it should not be a problem thanks to the built-in handle.

AIMTOM SPS-300 uses a high-capacity 11.1V 25Ah 3-cell lithium-ion battery, which is able to store ~280 Wh of energy. The built-in battery is able to withstand 500 charging/discharging cycles down to 80% DoD (~225 Wh effectively).

The battery features a low self-discharge rate - nonetheless, when the unit is not used, it is recommended to recharge it every 3-6 months and to store the unit in a cooler area (room temperature is just fine, but do NOT keep the unit in the car during summer heat).

The maximum continuous output power of the AIMTOM SPS-300 is 300 watts, with 600 surge watts - this is more than enough for powering general electronics, charging smartphones, tablets, laptops, drones, and for smaller home appliances, like LCD TV-s, smaller refrigerators, and similar. According to the AIMTOM, AC output is a pure sine wave with very low THD (Total Harmonic Distortion), ensuring that AIMTOM SPS-300 can be used for powering sensitive devices, too.

AIMTOM SPS-300 is able to power CPAP devices up to 10 hours (depending on the power requirements, sometimes even more than 10 hours), power mini-refrigerators for 4+ hours, 32" TV of 4+ hours, can recharge drones 11+ times, cameras 35+ times, phones 40+ times, laptops 5+ times, etc.

Of course, the actual number of recharges and runtime of various devices depends on the power/energy requirement, AIMTOM SPS-300 battery charge, and the battery condition.

aimtom sps 300 2

Output ports include:

  • AC Output (Pure Sine Wave): 110V, 300W Continuous, 600W Surge
  • 4x USB Outputs: 1A, 2.1A, 2x Fast Charging
  • 3x 12V DC Outputs: 4A each (max)
  • 1x 12V DC Car Port: 8A (max)
  • 1x 24V DC Outputs: 3A (max)

AIMTOM SPS-300 comes with several safety features, including automatic cooling fan, low power alarm, over-current, over-voltage, and over-temperature protection.

Note: AIMTOM SPS-300 is rather simple to use and maintain portable power station, but when it arrives, it is highly recommended to read the Owner's Guide (manual) thoroughly in order to get accustomed to your new portable power station.

AIMTOM SPS-300 portable power station features built-in MPPT charge controller for fast and optimized charging - unit can be recharged in several ways including:

- AC Wall Outlet in 7-8 hours,

- 12V Car Port in 7-8 hours,

- Solar Panel in 8-12 hours.

Note: AIMTOM SPS-300 doesn't include a solar panel for solar charging, but if You like outdoor activities, consider getting a good 18V 60-100W foldable solar panel. Also, when charging the power stations using a car cigarette lighter adapter, be sure to have the engine running in order to prevent discharging the car battery below safe levels (car will not be able to start if its battery is discharged below a certain level - not recommended situation when, for example, camping or hiking!).

aimtom solar 60w

Recommended models include (Amazon affiliate links, open in the new windows):

- AIMTOM ASP-60 SolarPal 60 (60W) Solar Charger

- AIMTOM ASP-80 SolarPal 80 (80W) Solar Charger

- AIMTOM ASP-100 SolarPal 100 (100W) Solar Charger

These portable folding solar panels can be used for recharging other portable stations, but also for direct charging of other devices like smartphones, tablets, and similar. Of course, AIMTOM SPS-300 can be recharged using solar panels from other brands, too.

aimtom sps 300 3


Long Story Short: If You are looking for a portable power station with a pure sine wave AC outlet and numerous DC outputs, consider AIMTOM SPS-300 model.

It is a relatively compact and lightweight unit that can be carried in the backpack, and suitable for camping, fishing, hiking, and similar trips, but also in emergencies when the mains power is gone...

For the most up-to-date offers and prices, feel free to check AIMTOM SPS-300 Portable Power Station Amazon link (link opens in the new window).