Battery encyclopaedia

Available as disposable alkaline and rechargeable NiMH.

Available as disposable alkaline and rechargeable NiMH.

AAA is sold as disposable alkaline and rechargeable NiMH. Check device voltage and charging rules.

Silver oxide 1.55 V variant; check specific device requirements and W/SW type.

CR2025 is a disposable 3 V lithium coin cell. LIR2025 rechargeable versions are not drop-in equivalents.

Rechargeable lithium-ion format. Cell voltage, protection, discharge rating and exact dimensions vary.

PP3 is the familiar rectangular snap-connector 9V battery format. Primary alkaline 6LR61, zinc-carbon 6F22, rechargeable NiMH and USB-C lithium-ion models exist. Rechargeable outputs, charger type and watt-hour ratings vary: select by the actual Wh rating, voltage behavior and verified device compatibility, not headline mAh alone.

CR2032 is a 3 V non-rechargeable lithium manganese dioxide coin cell, nominally 20 mm diameter and 3.2 mm thick. Rechargeable LIR2032 is a different chemistry and voltage and must not be treated as interchangeable. Editorial correction 2026-11-13: previous 'both' rechargeability classification was misleading; retained distinction in summary.

Rechargeable lithium-ion format; actual length, terminal design and protection circuitry vary; never mix loose unmatched cells.

Alkaline 1.5 V button cell; similar-sized silver oxide SR44 has different discharge behaviour.

AA is a physical battery size, not a single chemistry. Common variants are 1.5 V alkaline LR6 (non-rechargeable), 1.2 V NiMH HR6 (rechargeable), and 1.5 V primary lithium FR6/L91 (non-rechargeable). Compatibility depends on the specific device: tado VA01 uses alkaline only, tado VA02/Basic permit specified Panasonic Eneloop NiMH, and Nest Protect requires Energizer Ultimate Lithium L91.

Reference entry for CR2412. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR2430. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR2354. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR2450. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR2330. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR1025. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR1216. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR1220. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR2477. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR1225. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR1616. Chemistry and voltage vary by variant; verify manufacturer specifications.

Reference entry for CR2320. Chemistry and voltage vary by variant; verify manufacturer specifications.