Deep Cycle Batteries are quite something; they have proven to come in handy in many ways and different applications. Today, you will find then in standby generators, motorboats, solar charging systems, industrial backup systems, vehicles, and more. And now, you can use them as a backup system for your sump pump during a power outage or a blackout.
However, for it to work and expect the best results, you have to buy the right unit. And you will know that it is quite a rough work waiting for you. Luckily, I have done the dirty job and prepared this article to smoothen the process a bit. It’s now up to you to use the list I’ve provided and the buying guide to select the best model to buy.
Let’s jump right in!
Contents
- Top 8 Best Deep Cycle Batteries for Sump Pump in 2021
- 1. Weize Deep Cycle AGM Battery
- 2. Basement Watchdog 30HDC140S Back-Up Sump Pump Battery
- 3. Weize 75AH Deep Cycle Battery
- 4. MK Deep Cycle Gel Cell Battery
- 5. PumpSpy PS2000 Wi-Fi Battery System w/Internet Monitoring
- 6. PumpSpy PS2000WYN Wi-Fi Upgrade Kit
- 7. Zoeller 10-1450 Aquanot Deep Cycle AGM Battery
- 8. GLENTRONICS PHCC PRO SERIES 1850 BATTERY BACKUP SUMP PUMP SYSTEM
- Best Deep Cycle Battery for Sump Pump Buying Guide:
Top 8 Best Deep Cycle Batteries for Sump Pump in 2021
1. Weize Deep Cycle AGM Battery
My first product for you is Weize SLA VRLA Deep Cycle Battery, with full versatility. The battery uses a heavy-duty, state-of-the-art, calcium-alloy grid. The construction provides high-class performance and long service life in both cyclic and float applications.
The use of Absorbent Glass Mat Technology and a valve regulated design allows the battery to be used in enclosed and indoor environments with no leaking problem or need for maintenance. The battery can be used on a wide variety of applications, not just a sump pump; it is entirely fit for off-grid applications, scooters mobility, and solar marine.
Pros:
- Absorbent Glass Mat technology
- Heavy-duty, calcium-alloy grid
- Float and cyclic applications
- Wide variety of applications
- Deep Discharge Recover
- Valve regulated design
Cons:
- None
2. Basement Watchdog 30HDC140S Back-Up Sump Pump Battery
The Basement Watchdog 30HDC140S is a Big Standby Battery compatible with all the Basement Watchdog sump pump battery backup systems. With a unique heavy-duty plates construction, the battery is more than capable of storing more energy and providing you with longer run times. Best of all, it will last longer in the standby operation.
It has a high storage capacity allowing it to run any Basement Watchdog sump pump battery backup system recurrently and for days. Filling it with the battery fluid is a simple and straightforward thing. The product is shipped dry and vacuum-sealed for it to retain freshness until you activate it with the battery fluid.
Pros:
- Exclusive battery fluid sensor
- High reserve capacity
- Unique construction
- Heavy-duty plates
- Easy to fill
Cons:
- Battery fluid sold separately
3. Weize 75AH Deep Cycle Battery
Here is another Weive Deep Cycle Battery, but this time of a lower capacity, 75AH. The battery is specially designed for Wayne ESP25 Wayne ESP25 WSS30V Backup sump pump system, mobility wheelchair, trolling motor, solar system, and general use.
Similar to the first model, this battery also uses a heavy-duty calcium-alloy grid put in place to ensure the battery delivers exceptional performance and extended service life both in float and cyclic applications. Additionally, the use of Absorbent Glass Mat technology plus a valve regulated design ensures the battery stays clean with no leaks and requires no maintenance.
Pros:
- Absorbent Glass Mat (AGM) technology
- Durable, Well-Built Carry Handle
- Heavy-duty, calcium-alloy grid
- Sealed Lead Acid Technology
- Deep Discharge Recover
- Maintenance-Free
Cons:
- None
4. MK Deep Cycle Gel Cell Battery
MK Deep Cycle battery is a gel cell battery ideal for backup sump pump systems. The battery features Advanced American Technology combined with modern computer-aided design and top manufacturing techniques to make high-quality, reliable battery money can buy.
According to its makes, MK, the battery is manufactured under versatile computer-control battery formation technology to create something you can expect to be high-quality and high-performing. And you know what, it proved that during its making, the use of an automated computer-controlled system allows them to match the current, time, and temperature for various applications.
Pros:
- Leak Proof/Spill Proof Design
- High Discharge Rate
- Float and Cycle Use
- Maintenance Free
- Valve Regulated
Cons:
- None
5. PumpSpy PS2000 Wi-Fi Battery System w/Internet Monitoring
The next product is more than a battery system for a sump pump: PumpSpy PS2000 is a Wi-Fi Battery Backup System designed for Sump Pump applications. With this PumpSpy, you get 24/7 Remote Monitoring that Watches your sump pump and battery automatically. It also helps in detecting problems and sending alerts before flooding occurs.
And with their specialized app, you can get instant notifications and detailed alerts on your mobile devices. It’s designed to activate the battery backup pump when there is a power outage or a problem with the primary sump pump system. Apart from high-quality performance, the construction is also something commendable as it features high-quality components assembled in the USA.
Pros:
- Waterproof construction
- Free Wi-Fi monitoring
- Sealed Circuit Boards
- Epoxy Potting
- Instant alerts
Cons:
- None
6. PumpSpy PS2000WYN Wi-Fi Upgrade Kit
Similarly to the model above, this next best deep cycle battery for a sump pump is also a system set with a couple of units brought together to create an essential monitoring backup system. The package comes with a deep cycle battery fitted with a Wi-Fi upgrade kit.
The unit is designed to work with all the Wayne Backup pumps, including ESP25, ESP15, WSS30V, and WSS20V. The monitoring system is cable of detecting problems, underperformance, and also battery status for 24hours in a week. And after this, you get instant alerts of your portable device, and you can also check the info anytime with an app.
Pros:
- Free Wi-Fi monitoring
- Sealed Circuit Boards
- Automated System
- Epoxy Potting
- Instant Alerts
Cons:
- None
7. Zoeller 10-1450 Aquanot Deep Cycle AGM Battery
Zoeller 10-1450 Aquanot, a deep cycle AGM battery is the next product you can purchase. It comes as a 72-Amp Hour and 12-Volt maintenance-free AGM Battery designed to give you ideal and reliable power, especially for backup purposes. With a completely sealed and spill-proof construction, the battery is suitable for both enclosed and indoor use.
It is super safe with no exposure to any hazardous chemicals. Another thing, it does work with virtually all the backup systems types. However, you have to check your sump pump system compatibility with an AGM battery. The more substantial construction employed here ensures it stays in shape for a very long time. It comes with two well-designed handle straps for easy carry.
Pros:
- Sealed and spill-proof construction
- Maintenance-free AGM design
- Reliable screw terminals
- Long operating hours
- Easy-carry handles
Cons:
- Quite heavy
8. GLENTRONICS PHCC PRO SERIES 1850 BATTERY BACKUP SUMP PUMP SYSTEM
Lastly, we have another well-designed system kit ideal for use as a reliable 12V DC sump pump backup system. PHCC Pro Series 1850 is here to give you an automatic backup that starts when your existing sump pump fails. It is here to provide added sump pump output and an exclusive monitoring system.
Best of all, the unit comes with a controller that keeps an eye on power conditions and battery life. Once there are a failure or maintenance requirements, it sounds an alarm. Additionally, the system has a USB Data Port and Remote Terminals, where you get to connect an external device like a Pro Series Connect Module. You can also connect it to your home automation or remote notification devices for more convenience.
Pros:
- Programmed Battery Charging System
- Dual Float Switch w/Protective Cage
- Continuous-duty, submersible pump
- Rulon sealed, dustproof housing
- Stainless steel shaft
- Maintenance-free
Cons:
- Expensive
Best Deep Cycle Battery for Sump Pump Buying Guide:
Here are some of the considerations you need to keep in mind while you try to figure out the perfect Deep Cycle Battery for your Sump Pump.
Battery Charger
Similar to all sealed and gelled units, the AGM batteries are highly sensitive to overcharging. If you use the wrong charger, you will be killing your battery. You need to get the right charger or reduce your float charger; something like 2.40v/cell is fine. But the float charger needs to be reduced to something between 2.25V and 2.30V/cell. During summer, you may need a lower voltage.
Battery Type: AGM or Wet Cell
AGM batteries come with a sealed, leak-proof body. They do not need any fluid as they use the Absorbent Glass Mat Technology to stay dry and provide maintenance-free service. Wet Cell batteries, on the other hand, use the battery fluid and electrolyte to give you power. They will need refilling time to time to lengthen its life. The two are relatively good, but if you need a battery that stays for long on standby, I would recommend the AGM.
Run Time
While making your selection, ensure you keep in mind the run time of the battery both in standby and while operating. The info will help you know how long the battery will stay with power and when to recharge.
Compatibility
Not all sump pumps are compatible with Wet-Cell or AGM battery. Some sump pumps are compatible with both types and others with one of the two. For better results and utilization of your investment, you got to ensure you buy a compatible battery. Read the information on the sump pump manual before heading to the market.
Best Deep Cycle Batteries for Sump Pump (FAQs)
Q: How long will my Deep Cycle Battery last?
A: Typically, the service life of a deep cycle battery depends on the type and model. For an AGM deep cycle battery, the lifespan can be anywhere between four and seven years. While for the Gel Cell Deep Cycle battery, the lifespan is something between two and five years.
Q: What amp do I have to charge my deep cycle battery?
A: Deep cycle batteries require a higher charge rate, something like 6-10 amps or more. However, you should check the battery specifications for the right charge amps rate.
Conclusion
And there you have it; everything you need to buy the perfect Deep Cycle Battery for your Sump Pump. Do not invest in anything that doesn’t meet your needs and requirements. Go for nothing but the best. Good Luck!
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Thanks for the info. Unfortunately, I believe you left out the most important factor in selecting a sump battery. AGM batteries need a specific voltage from the charger, one that is lower than the standard 13-14v that sump battery chargers put out. The battery will work, but it’s life will be cut in half, making it a waste of extra dollars.