Trojan SPRE 06 255, 6 Volt deep-cycle flooded lead-acid, 229Ah / 20h, solar series, group GC2, L terminals, 2 + 3 years warranty
Trojan SPRE 06 255
Trojan is a well-known and trusted brand for renewable energy batteries. Their L16’s were and are the battery of choice, right from the start when people moved off-grid in the 1960’s. Designed with an 8- to 10-year battery life, Trojan Battery’s Solar Series line of flooded, deep-cycle batteries is specifically engineered to withstand the rigorous conditions of deep-cycle renewable energy applications.
Deep-cycle batteries used in off-grid and unstable grid applications are heavily cycled at partial state of charge (PSOC). Operating at PSOC on a regular basis can quickly diminish the overall life of a battery, which results in frequent and costly battery replacements. To address the impact of PSOC on deep-cycle batteries in renewable energy (RE), inverter backup and telecom applications, Trojan Battery has now included Smart Carbon™ as a standard feature in its Solar Industrial and Solar Premium flooded battery lines.
The Trojan SPRE 06 255 is a direct replacement for their T-105RE battery.
Recommended Charge Settings (at 25C)
|Charge State||12 Volt||24 Volt||48 Volt|
|Bulk||14.7 Volt||29.4 Volt||58.8 Volt|
|Absorb||14.7 Volt||29.4 Volt||58.8 Volt|
|Float||13.5 Volt||27.0 Volt||54.0 Volt|
|Equalize||15.8 Volt||31.6 Volt||63.2 Volt|
|Temperature Compensation: -5 mV/°C/cell|
Equalize time: 2.5 hours, add distilled water as-needed halfway through
Absorb time: 0.42 x C / I, where C is the 20-hour battery bank capacity and I is the real-world charge current
For example, a 12 Volt bank of two SPRE 06 255 batteries, 229 Ah battery bank, with 300 Watt in solar PV would have a realistic charge current of around 22 Amp in full sun. That makes for an absorb time of 0.42 x 229 / 22 = 4.37 hours = 4 hours 25 minutes
Maximum charge current: 15% of 20-hour battery bank capacity (ie. 0.15 x 229 = 35A for a SPRE 06 255 battery for example), never more than 20%
Low-Voltage cut-off: 11.1 / 22.2 / 44.3 Volt (corresponds to about 80% Depth-Of-Discharge)
- Group size GC2 (golf cart)
- Smart Carbon for improved performance
- DuraGrid design provides a thick grid structure that resists corrosion and increases overall battery life
- Maxguard XL Separator provides even greater resistance to stratification
- The ultra-rugged Polyon container protects against damage caused by harsh environmental conditions