Energizer 84027 12V 2 Amp Battery Charger and Maintainer

• Conveniently and safely maintains battery charge while in storage without having to disconnect from vehicle
• Switch-mode power for better efficiency, reliability
• Physically small and light-weight
• Full 3-stage charger, not just a battery maintainer
• Multiple output cords

I was looking for something less in price than the well known brands to charge some 9 Ah SLA batteries. 2 amps is about optimal for this size and this charger works perfectly. It's all you need for batteries of this range simple and effective. Multi-stage is the best for these batteries, brut-force auto chargers don't help. I now also use this to top off ATV batteries (12 Ah) during the off season to keep them from running down and sulfating.

I thought of the 4-amp version, but 2 amp is optimal for the battery sizes I have.

The only thing keeping it from a 5-star rating is that it has no on-off switch; they just want you to plug and unplug the AC to control it.

While I know Eveready is in this case just a brand, these seem quality made from the charger itself to the connectors. It's perfect for what I need it for.

Buy Energizer 84027 12V 2 Amp Battery Charger and Maintainer Now

I use a standard 12v7ah SLA (commonly used in UPS's) for the lights and stuff on my bicycle; the cord configuration, charging rate, and maintenance/shut offs on this charger allow me to use the battery a lot or a little, and then simply clip the cords together when I get back, throw the power switch on the power strip its attached too, and know that the battery will be well charged, but undamaged when I use it again. Really a quality product, very satisfied. I suspect it would work well and conveniently in any situation that involves using these types of batteries often but without on-device charging.