Nikon SB-28 instruction manual Notes on batteries

Notes on batteries

•Lithium batteries have approx. 1.1 to 1.2 times the power capacity of alkaline-manganese batteries.

•Lithium batteries feature greater efficiency at low temperatures when compared with alkaline-manganese batteries. Lithium batteries boast consistent performance in terms of recycling times and number of flashes, regardless temperature changes.

•NiCd batteries boast a constant recycling time regardless of temperature changes when compared with other types of batteries. Recommended for use in temperatures as low as 0°C (32°F).

•Ni-MH batteries feature a constant recycling time but a little longer recycling time at low temperatures when compared with NiCd batteries. However, Ni-MH batteries maintain their efficiency regarding the number of flashes regardless of temperature changes.

Notes on using alkaline-manganese and lithium batteries

•Non-rechargeable batteries such as alkaline-manganese and lithium batteries should not be charged in a battery charger as they may explode.

•Lithium batteries incorporate internal safety switches. When the battery becomes hot, its safety circuit is activated, cutting off power. This often occurs when the SB-28 is operated in the repeating flash mode. The flash ready-light will not light up after firing approx. 24 exposures. However, battery power will recover when the temperature goes back to normal.

Notes on using rechargeable NiCd and Ni-MH batteries

•When recharging batteries, be sure to use the battery charger specified by the battery maker and read the instructions thoroughly.

Recharging should be done in temperatures from 10° to 30°C (50° to 86°F).

•Do not recharge NiCd or Ni-MH batteries with their terminals reversed in the charger or before the batteries have cooled off sufficiently.

•Overcharging and excessive use may shorten battery life. Do not overcharge and be sure to turn the SB-28 off when not in use.

•Because flash consumes a large amount of battery power, rechargeable batteries may not operate properly before reaching the end of their stated life-span or the number of charging/discharging as specified by the battery manufacturer.

•If NiCd or Ni-MH batteries do not last as long as they should after being fully charged, they are approaching the end of their life. Replace them with a new set.

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