SP 80A AGM BATTERY LONG LIFE SPL (UNIT PRICE)
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SUPER POWER AUDIODESIGNED IN ITALY
MMXXVI
80 Ah.
1100 A CCA.
The SP-80A is a 12 V VRLA AGM battery built to power high-output car audio and SPL systems. Very low internal resistance: it delivers within milliseconds the current peaks your amplifiers demand on bass transients and keeps the system voltage more stable.
AGM technology, state of charge, charging, installation, storage, safety, troubleshooting and the 1-year warranty.
⇩ Open the manual (PDF)PDF · English · 2026 edition
Why AGM
Low internal resistance: high current peaks with minimal voltage drop, ideal for bass transients.
Electrolyte absorbed in glass-fibre separators: no topping up, no free liquid.
Plates and separators compressed inside the case: a sturdy build suited to vehicle use.
Water is not consumed in normal use: the battery stays sealed for its whole life.
Technical specifications
| SP-80A · CODE 1998 | |
|---|---|
| Nominal voltage | 12 V |
| Technology | VRLA AGM |
| Rated capacity (C10) | 80 Ah |
| Cold cranking amps (CCA) | 1100 A |
| Pulse cranking current | 2600 A |
| Short-circuit current | 4800 A |
| Power | 5000 W |
| Dimensions L × W × H | 255 × 165 × 210 mm |
| Sold as | Unit |
| CHARGING PARAMETERS | |
| Absorption voltage | 14.4 – 14.7 V |
| Float (maintenance) voltage | 13.5 – 13.8 V |
| Maximum permitted voltage (alternator included) | 14.8 V |
| Max recommended charge current (0.2 C) | 16 A |
| Temperature compensation (if available) | ≈ −24 mV/°C from 25 °C |
| Frozen battery, or hot to the touch | DO NOT charge |
C10: CHARGE DELIVERED OVER A 10-HOUR DISCHARGE AT 25 °C · CCA: AT −18 °C FOR 30 S HOLDING AT LEAST 7.2 V (SAE) · PULSE AND SHORT-CIRCUIT ARE LABORATORY PEAK VALUES, NOT WORKING CURRENTS
Read the state of charge
| REST VOLTAGE | CHARGE | WHAT TO DO |
|---|---|---|
| ≥ 12.80 V | 100 % | Fully charged. Ready to use. |
| 12.55 V | ≈ 75 % | Good. Recharge at the next opportunity. |
| 12.30 V | ≈ 50 % | Recharge now: do not leave it in this state. |
| 12.00 V | ≈ 25 % | Discharged. Recharge immediately with an AGM charger. |
| ≤ 11.80 V | ≈ 0 % | Fully discharged: risk of sulphation. Recharge within a few hours. |
| < 10.5 V | Deep discharge | Probable, irreversible damage. Not covered by warranty. |
INDICATIVE VALUES AT 25 °C, MEASURED ON THE POSTS WITH A DIGITAL MULTIMETER AFTER AT LEAST 6 HOURS OF REST
Charge it right
Bulk at constant current, absorption at 14.4–14.7 V, then float at 13.5–13.8 V to offset self-discharge without overcharging. Every valve opening caused by overcharging releases gas and water that cannot be replaced.
Forbidden: jump starters (boosters), truck chargers, fast chargers, unregulated power supplies, GEL programs and high-voltage “desulphation/recondition” modes not intended for AGM.
Alternator: with the engine running, typically 13.8–14.8 V at the terminals. After long listening sessions with the engine off, always finish with the charger.
Complete the system
Before you install it
- Boot or cabin, never the engine bay in high-performance systems: away from engine, exhaust and heat sources. Every 10 °C above 25 °C halves the expected life.
- One fuse (ANL / mini ANL) on the positive of each battery, within 30 cm of the post and sized to the cable gauge.
- Secure it with strong brackets or straps: it must not move under braking or in a collision. Do not enclose it in airtight boxes.
- Connect the positive first, then the negative; to disconnect, remove the negative first. Ignition and system off, no metal tools on the battery.
- In parallel, only identical batteries: same model, age and state of charge, each fully charged first, link cables of equal length and gauge.
Questions installers ask
spaudio@spaudio.it · +39 340 807 8778
Accepted payment methods
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SP Audio — Super Power Audio. Designed in Italy by Audiocar Import & Export SRLS, Milano, official SP Audio distributor for Europe.