There’s a new portable phone charger making the rounds that’s making claims that seem too good to be true. It’s called the ASAP Dash and it claims to be the world’s fastest pocket-sized charger.
Charging batteries can be compared to filing a bucket with water. If you have a small hose, it will take a long time to fill the bucket, but you won’t spill a drop. If you have a big hose, say a firehose, that bucket might fill in just a second or two – but you’ve got to closely monitor and adjust the pressure, or you’re going to get soaked – and the bucket might end up with hardly any water in it.
The logic is surprisingly similar for how batteries charge: a slow trickle will work great almost all of the time – but it takes a long time; a quick charge could fill the battery too rapidly, causing problems – potentially explosive problems. Can charging a battery that quickly damage it? Yes – but not if the battery (and the charging circuit behind it) is built to accept that kind of rate.
With that as a reference, looking at the ASAP Dash, it looks like there may be some misunderstandings about what the device actually is, and how how it works.
First off, the ASAP Dash is just another portable battery. You charge it up, then take it with you. When your phone needs to be topped off, you’ll have a reserve nestled in your pocket – just like any other portable battery. This battery, however, claims to charge significantly faster than others. Note that the portable battery itself charges quickly – it’s still going to charge your phone at whatever rate your phone can accept that charge.
What’s more, the language used in the promotional video warrants a little explaining as well: you can charge the ASAP Dash with enough energy to charge your iPhone 5 in only five minutes – or three charges in 15 minutes. That’s impressive – but it’s still not going to charge your iPhone any faster than plugging it into the wall.
At the end of the day, the ASAP Dash is essentially a portable battery with rapid charging built-in – nothing more. Then again, a rapid-charging portable battery is nothing to scoff at either.