Best Power Replacement Batteries

Replacement batteries for all Best Power UPS Models.

Compatible Best Power Replacement Batteries Supplied pre wired where shown

Safe disposal in accordance with WEE regulations- see below

All VPS replacement UPS battery kits are assembled using high quality sealed lead/acid batteries manufactured by CSB or Yuasa which are fitted in both new equipment and also replacement battery cartridges.

Next day delivery on all orders before 4.00 p.m.

We only list the most popular models. If your Best Power model is not listed here or you are unsure which battery you need please contact sales for pricing and availabilty. The prices shown exclude VAT and Delivery charge of 5.99 if your order is less than 200.

If required you can purchase safe disposal of your old batteries, simply use the carton your new batteries have arrived in and call us when your battery is ready for collection quoting your receipt number - the price includes the return freight and is per carton. This is down at the bottom of this page. Parcelforce will bring all necessary labels.

1 year warranty

Patriot SMT 280
Patriot SMT 420
Patriot SMT 750 / Sola 750
Patriot SMT 1000 / Sola 1000
Patriot SPI 250
Patriot SPI 400
Patriot SPI 450
Patriot SPI 600
Patriot SPS 250
Patriot SPS 300
Patriot SPS 450
Patriot SPS 650
Patriot SPS 850
Patriot II 250
Patriot II 425
Patriot II 600
Patriot Pro 400
Patriot Pro 750
Patriot Pro 1000
Patriot Pro II 400
Patriot Pro II 750
Patriot Pro II 1000

Fortress I LI 360
Fortress I LI 660
Fortress I LI 950
Fortress I LI 1020
Fortress I LI 1420
Fortress I LI 1.3K
Fortress I LI 1.7K
Fortress I LI 2.0K
Fortress I LI 3.0K
Fortress I LI 3.0K Ext.
Fortress I LI 5.0K
Fortress I LI 5.0K Ext.
Fortress I LI 720 RM
Fortress I LI 1020 RM
Fortress I LI 1420 RM
Fortress II LI 520
Fortress II LI 720
Fortress II LI 1020
Fortress II LI 1420
Fortress III 750E
Fortress III 1050E
Fortress III 1425E
Fortress III 2250E
Fortress III 750RE (RM)
Fortress III 1050RE (RM)
Fortress III 1425RE (RM)
Fortress III 2250RE (RM)

Ferrups ME 500
Ferrups ME 700
Ferrups ME 850
Ferrups ME 1.15KVA
Ferrups ME 1.4KVA
Ferrups ME 1.8KVA
Ferrups ME 2.1KVA
Ferrups ME 3.1KVA
Ferrups FD 4.3KVA
Ferrups FD 5.3KVA
Ferrups FD 7KVA
Ferrups FD 10KVA
Ferrups FD 12.5KVA
Ferrups FD 18KVA

Ferrups 1.15KVA
Ferrups 500VA*
Ferrups 700VA
Ferrups 700VA*
Ferrups 850VA
Ferrups 850VA*
Ferrups 1.15KVA*
Ferrups 1.4KVA
Ferrups 1.4KVA*
Ferrups 1.8KVA
Ferrups 1.8KVA*
Ferrups 2.1KVA
Ferrups 2.1KVA*
Ferrups 3.1KVA
Ferrups 3.1KVA*
Ferrups 4.3KVA
Ferrups 4.3KVA*
Ferrups 5.3KVA
Ferrups 5.3KVA Ext.
Ferrups 7KVA
Ferrups 7KVA Ext.
Ferrups 10KVA
Ferrups 10KVA Ext.
Ferrups 12.5KVA
Ferrups 12.5KVA Ext.
Ferrups 18KVA
Ferrups 18KVA Ext.

Axxium RM 1000 VA
Axxium RM 1500 VA
Axxium RM Bat 2000/3000

Best 510 600 VA
Best 510 900/1250 VA
Best 510 1650/2000 VA
B610 BAT1000
B610 BAT1500
B610 BAT2000/3000
B610 BAT5000/6000

Unity 3KVA (bis S/N:20000)
Unity 3KVA (ab S/N:20000)
Unity 4KVA
Unity 5KVA
Unity 8KVA


If you cannot see your model number listed here please contact sales on 0800 634 3390.