In astrophotography where DSLRs are expected to take images continuously for several hours, spending on expensive spare DSLR batteries may not be the best investment. The DIY modification below shows how I used an old DSLR battery and a DC adapter as an alternative way of powering your DSLR during an overnight stargazing event.

DIY power adapter for powering DSLRs from an external 12V battery. A voltage regulator called ‘7808’ is used to ensure that the voltage output remains at 8 V.

Related article: Improved Field Battery

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© Anthony Urbano (Manila, Philippines)