KSTAR GEL gel batteries, 12 V, 38–2000 Ah

Name: GEL gel batteries, 12 V, 38–2000 Ah
Brand: KSTAR

Supplied as an official KSTAR partner

Manufacturer: KSTAR · China · Model: GEL

GEL gel battery units of 12 V with a capacity from 38 to 2000 Ah for solar power plants, energy storage systems, UPS and telecom. The stated service life in float mode is up to 20 years, and the operating temperature is −40…+65 °C.

Capacity: 38–2000 Ah
Operating temperature: −40…+65 °C
Service life: up to 20 years (float mode)
Self-discharge: storage for 6 months without recharging

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Technical specifications

Capacity	38–2000 Ah
Operating temperature	−40…+65 °C
Service life	up to 20 years (float mode)
Self-discharge	storage for 6 months without recharging

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

The electrolyte in these batteries is thickened into a gel, so the case is sealed and no water needs to be added. The temperature range from −40 to +65 °C is wider than in the Deep Cycle and FML series (both −20…+50 °C), so the batteries go into unheated cabinets and containers. After charging they can be stored for 6 months without recharging, which suits warehouse stock and seasonal sites. The term of up to 20 years refers to float mode, that is, constant trickle charging from a charger in a UPS or at a telecom site.

How to choose

Start with the capacity within 38–2000 Ah according to the autonomy time you need, then the mode of operation. GEL suits float duty, while for frequent deep discharges in a solar plant Deep Cycle is better, in 2 and 12 V, with a life of 15 years for 2 V and 10 years for 12 V. If you need a life of over 3500 cycles and a built-in BMS, look at the LFP, 12.8 V. For UPS systems with high currents there is the High Rate series.