BatteryGuard disconnects the battery from vehicle circuits to stop most parasitic drains. It prevents common overnight or storage discharge but does not replace regular charging for long-term storage beyond months.
1 + 1 FREE TODAY | BatteryGuard™ - Disconnect Switch
Stop battery drain simply and extend battery life with one reliable switch
Save $25.01
Pay safely with credit card or
Free shipping in the US & Canada
30 day return guarantee
Daily offer
Only 3 left in stock
Free, insured shipping with tracking included
30-day money-back guarantee
Join over 8,000 satisfied customers!
261
reviews
Saved me from dead batteries on long trips, simple on/off control gave me peace of mind and cut maintenance time. Easy install, sturdy build, and no more surprise no-start mornings.
Robert Y.
✔️ Prevents 100% parasitic drain when switched off
✔️ Extends battery life by reducing idle discharge
✔️ Saves time with tool-free on/off maintenance
✔️ Improves start reliability after long parking
Tired of dead batteries after long parking
BatteryGuard gives you one-twist power cut so parasitic drains stop. Park for weeks and still start instantly, no jump-starts or roadside hassles.
Worried about electrical shorts and drain
Built from pure copper and heavy-duty parts, BatteryGuard prevents current leakage and protects vehicle wiring. Enjoy safer storage and fewer electrical problems.
Keep your battery healthy and ready every time
BatteryGuard stops parasitic drain, simplifies maintenance, and extends battery lifespan so your vehicle starts reliably after long parking.
🔋
No Drains
Stops parasitic draw to keep battery fully charged during storage.
🛠️
Easy Use
Tool-free on/off control for quick disconnects and routine checks.
⚡
Better Performance
Reduces electrical strain for steady starts and longer battery life.
🏕️
Season Ready
Perfect for long parking, storage, and seasonal vehicle use.
Need easy maintenance during seasonal downtime
Quick disconnect makes battery removal unnecessary. Flip off power for winter storage and flip on in minutes—saves time, tools, and garage trips.
Real results drivers rely on
98%
Reported that BatteryGuard stopped overnight drain and prevented no-start mornings.
97%
Experienced fewer battery replacements after using BatteryGuard during storage.
96%
Found on/off control made winterizing vehicles faster and hassle-free.
BatteryGuard™ 30-Day Risk-Free Battery Protection Guarantee
Try BatteryGuard risk-free for 30 days. If it doesn't prevent battery drain or make long-term parking easier, return it for a full refund. We stand behind BatteryGuard to keep your battery charged, protected, and ready when you are.
Common questions about BatteryGuard and battery protection
Clear answers to help you choose, install, and trust BatteryGuard for reliable battery care
Will BatteryGuard stop all battery drain?
Will BatteryGuard stop all battery drain?
Is installation difficult for a non-mechanic?
Is installation difficult for a non-mechanic?
No. BatteryGuard installs in minutes on the battery terminal with basic hand tools. Clear instructions included so any driver can fit it without a shop visit.
Will it fit my truck or car battery?
Will it fit my truck or car battery?
BatteryGuard supports typical 12V automotive batteries and fits most cars, trucks, and SUVs. Check terminal style in the manual for compatibility before purchase.
Does it protect against electrical shorts?
Does it protect against electrical shorts?
Yes. The robust copper construction and secure mechanism reduce leakage and accidental shorts, protecting wiring and preventing slow drains.
What if I change my mind after buying?
What if I change my mind after buying?
You have 30 days to return BatteryGuard for a full refund. We want you to feel confident it protects your battery and simplifies maintenance.
Real users love this switch
Trusted feedback from real buyers
Michael B.
Verified Buyer
Works perfectly on my 24V truck. It makes great contact and you can tell the mechanism is built solid. Highly recommend.
Matthew C.
Verified Buyer
A must-have for my classic car that doesn't get driven much. Saves me from having to break out the tools to unbolt the battery terminals every single time.
Joseph T.
Installed in less than 5 minutes. It's compact and takes up very little space under the hood. Ideal for cutting the power quickly.
Charles L.
Verified Buyer
Practical and gives great peace of mind. I use it to cut the power whenever I'm working on the car's electrical wiring, it's become second nature now.
Daniel W.
Verified Buyer
Tested on a 24V tractor and a 12V commuter car, fits perfectly on both. A well-designed little accessory that saves a lot of hassle.
David H.
Bought it for winter storage, great.
Mark A.
Verified Buyer
Perfect for fleet use; drivers flip it when vehicles sit overnight and we’ve seen fewer dead batteries and less downtime overall.
Paul N.
My older truck used to lose charge from background drains. Now I switch it off during long parking and the battery life has improved a lot, very reliable piece.
Eric D.
Verified Buyer
Had doubts at first but this on-off disconnect stopped parasitic drain from accessories when parked. Now I avoid late-night jump starts and the battery lasts longer overall.
Robert S.
Saved my weekend trip, very glad.
Christopher P.
Verified Buyer
Had constant battery drain from accessories when car sat idle. This switch lets me cut power in seconds and the battery now holds charge much longer than before installation.
James R.
Verified Buyer
Works exactly as expected, super reliable.
George F.
Verified Buyer
Solid construction, no weird electrical noise, easy to reach under the hood. Saves time at maintenance and reduces the chance of finding a dead battery on return.
William K.
This gave me a straightforward on-off control to disconnect power and prevent battery drain during long parking periods, which extended battery life noticeably.
Kenneth J.
Used it for work truck downtime in harsh conditions. The robust design survived rough handling and prevented unwanted drains, reducing battery replacements across the fleet.
Richard M.
Verified Buyer
Installed it on my truck; now I disconnect power during seasonal downtime and the battery holds charge months longer, very practical solution.
Anthony G.
Verified Buyer
At first I was skeptical, but after a month of leaving my camper parked the battery stayed at full charge. Sturdy feel and real savings on replacement batteries.
Please note! Order up to and including to take advantage of the discount promotion.